Sie sind hier : Startseite →  Hifi Hersteller (4) International→  (The) Fisher (USA)→  The Fisher Book 1965 (III)

Fisher High Fidelity Stereo Components

Even if you are a newcomer to high fidelity, you are undoubtedly aware of the significance of the Fisher name on a component. Fisher has been the gold standard of audio professionals and quality-conscious music lovers since the earliest days of the hi-fi era. (Your favorite FM station most probably monitors and relays its own broadcasts with a Fisher tuner.)

However, you may not be fully aware of the uniquely wide choice of equipment offered by Fisher today. The pages that follow will acquaint you with the full scope of the current Fisher models.

It is an important part of the Fisher philosophy that the component buyer is entitled to select precisely what he needs - and no more than he needs. For this reason Fisher makes virtually every type of component in every category. But the basic standard of fidelity is the same for all Fisher equipment; the simpler models do not sound strikingly different from the more elaborate and costly ones.

The advantage of the latter lies mainly in their greater versatility and an extra margin of performance for specialized needs or particularly demanding circumstances. All Fisher components, regardless of price, will give you distortion-free stereo reproduction plus unqualified durability in service.
No matter what you buy from Fisher, it will always sound like a Fisher.
(Page 33)
.

A World - Famous Fisher Concept :
All-in-One Stereo Receivers

These best-selling instruments combine the tuner, amplifier and controls of an advanced stereo system on one compact chassis. Simply connect a pair of speakers and you are ready to play -and outplay other systems.

The Fisher 400

65-Watt FM-Multiplex Stereo Receiver

Incorporating a high-sensitivity FM-multiplex tuner, a flexible stereo preamplifier and a 65-watt (IHF Standard) stereo power amplifier, the Fisher 400 represents an outstanding receiver at a price even the most economy-minded music lover can afford. No compromise was made in the essential design characteristics, in the quality of workmanship, or in the rigorous test procedures and standards characteristic of the finest Fisher products.

In the FM section, a new front end of exceptional sensitivity employs three tuned circuits for increased selectivity and rejection of unwanted signals. The front end is completely shielded, and the tuning capacitor is fully enclosed. Following the front end are three wideband IF stages, with two stages of limiting (including the ratio detector.) The ratio detector, which utilizes a matched pair of germanium diodes, is linear over an extremely wide range.

This results in accurate detection of even the most complex multiplex signals and in lowest distortion on monophonic FM. The multiplex demodulator utilizes the superior time-division method and incorporates the stereo beam indicator, plus a stereo filter to eliminate background noise on weak multiplex signals without impairing the treble portion of the stereo program material. The stereo beam tube is also used as a tuning indicator, for microaccurate tuning on both mono and stereo broadcasts.

The audio control center of the 400 includes all the most-wanted features, including tone controls, balance control, loudness compensation, a sharp-cutoff high frequency filter, a speaker on-off switch and tape monitoring facilities. Separate bass and treble controls, with the Fisher friction-lock system, are provided for each channel. Monitored tape recording and immediate playback, with unrestricted use of all audio controls, are made possible by the exclusive Fisher direct tape monitor system. A single selector switch combines all the functions normally incorporated in separate input and mode selectors, thus greatly increasing the convenience and simplicity of operation. Other extras include a center-channel output (for a separate power amplifier), choice of 'normal' or 'local' antenna inputs to prevent overloading on strong local signals, and DC on all filaments of the low-level audio stages to reduce hum and noise to inaudible levels.

The Fisher 500-C

75-Watt FM-Multiplex Stereo Receiver

Here, without question, is the industry standard. Incorporating the most advanced principles not only of electronic design but also of 'human engineering,' the 500-C is capable of achieving maximum performance in the hands of novice and audio connoisseur alike.

Perhaps the best way to understand the reasons for the superiority of the 500-C is to follow a signal through the entire receiver. The first group of circuits encountered by an incoming FM broadcast signal are those of the new Nuvistor-golden synchrode front end, which affords far higher sensitivity, a wider overload margin, and better rejection of spurious and image signals than previous designs. Low-noise nuvistor triodes, used for both mixer and oscillator, provide a higher degree of mechanical and electrical stability, and a better signal-to-noise ratio. The signal is then amplified by four wide-band IF stages and is converted to an audio signal by a wide-band ratio detector that utilizes two balanced germanium diodes. The high amplification of these IF stages, combined with the progressive action of three limiters (including the ratio detector), assures a maximum degree of freedom from noise and interference.

The detected audio signal is fed to the circuits of the famous Fisher stereo beacon. Here the receiver senses whether the signal is of a monophonic or a stereophonic broadcast. If the broadcast is stereo, the receiver is automatically switched into the stereophonic mode of operation. A newly developed electronic switch in the stereo beacon, utilizing four silicon diodes to eliminate all clicks and pops from the loudspeakers during switching, routes the signal to the multiplex converter. The converter is of the superior time-division type and consists of two balanced 4-diode bridges and a 38-kc synchronous oscillator, acting as an electronic switch.

Various exclusive circuit refinements prevent the receiver from switching into the stereophonic mode of operation through false triggering due to noise pulses or high-frequency audio transients. The tuning meter, which is included to provide pinpoint tuning accuracy, also indicates the point of lowest distortion, greatest separation and highest AM suppression.

From the multiplex section the signal goes to the audio stages. The preamplifier section offers a full complement of audio controls, including separate friction-lock bass and treble controls, high and low sharp-cutoff filters, plus a front-panel headphone jack. A four-position speaker selector switch is provided, permitting the receiver to act as the control center for both the main set of speakers and one or more remote speaker installations. The same switch silences all speaker systems for completely private listening with headphones.

The exclusive Fisher direct tape monitor permits monitoring while a tape is being recorded, followed by immediate playback with full use of all audio control facilities-without any change in cable connections. For greatest simplicity and most convenient operation the separate mode selector and input selector switches normally found on stereo amplifiers are now combined in a single switch.

From the preamplifier-control section the signal finally passes into the left-channel and right-channel power amplifiers. These are capable of a combined output of 75 watts (IHF Standard) at extremely low distortion, with outstanding transient response and stability. At normal listening levels the distortion is virtually nonmeasurable. It is inaudible at all levels. Advanced circuitry is combined with superior, oversize output transformers to make this performance possible. A derived 'third' power output is provided in addition to the left and right speaker connections, for either center-channel use or an extension speaker.

The Fisher 800-C

75-Watt AM-FM-Multiplex Stereo Receiver

This superb receiver is identical to the 500-C as described on page 37, except that it includes, in addition, a high-performance AM tuner section. The AM circuitry features a high-gain pentode RF amplifier, a pentagrid converter, and an IF amplifier with switchable bandwidth. (A front-panel switch selects either 'broad,' for widest frequency response, or 'sharp,' for maximum selectivity.) A high-sensitivity ferrite rod AM antenna is mounted outside the chassis of the 800-C, for best possible reception.

Technical Features and Specifications of Fisher Receivers

kommt noch

The Unique Fisher 700-T Transistor Stereo Receiver

Here is the first all-solid-state receiver to incorporate every known and desirable engineering advancement in transistor design. In addition, it utilizes several entirely new circuits that were developed for and are now used exclusively in aerospace technology.
The result is truly unique - an instrument without an equal in performance and ease of operation. The magnificent new control panel features a 24-carat gold-plated casting with contrasting walnut-textured and anodized panel designations, assuring 'new' appearance virtually for life.

The Fisher 700-T has 120 watts of music power (IHF), and employs twenty-two low-level and power silicon transistors, including an exclusive group of silicon Field Effect Transistors (F.E.T.)

The FM front-end utilizes low-noise F.E.T. transistors. It has two stages of RF amplification, six tuned circuits, and a four-gang variable capacitor. Through the use of this outstanding circuit, Fisher engineers have increased the sensitivity of the tuner section to its theoretical limit. The 700-T not only receives very weak signals, but makes it possible to enjoy 'problem' stations that, on ordinary receivers may have been blanketed by stronger signals, or were 'hidden' in noise. Four IF stages, three limiters and a wide-band ratio detector have been incorporated for maximum freedom from noise and interference.

The time-division multiplex section has an exclusive Four-Diode Coincidence Circuit to eliminate triggering caused by spurious signals. Only the true stereo signal can trip the mono-stereo switch. The renowned Fisher STEREO BEACON* automatically signals the presence of a stereo broadcast, and automatically switches to the mono or stereo mode. Stereo separation reaches the limits of perfection. Between 400 cps and 1 kc it is more than 40 db. At 15 kc, it is better than 30 db.

A full complement of tone controls and switches are logically grouped on the front panel to afford complete ease of operation. The new Baxandall-type feedback networks in the dual bass and dual treble controls remove all possibility of 'boom' or harshness as caused by conventional controls.

The six-position Program Selector (TAPE HEAD, PHONO, FM AUTO, FM STEREO, FM MONO, AUX) permits the widest range of source material. The five-position Mode Selector (MONO, STEREO FILTER, STEREO, STEREO TAPE, TAPE L, TAPE R) provides a host of conveniences for maximum listening pleasure. One may select a mode for the amplifier section and playback from tape decks or a tape recorder. The unique DIRECT TAPE MONITOR feature permits the use of all the controls on the 700-T during tape monitoring without changing cable connections. Its last two positions, Tape L and Tape R, permit playback of each of the four tracks of a monophonic tape through both loudspeakers simultaneously.

In its design, circuitry, appearance, high power, and performance, the Fisher 700-T appears destined to become the most wanted receiver since the advent of the all-in-one component. It will set the standard for years to come. *Patent Pending

The Superb Fisher 440-T Transistor FM-Stereo Receiver

The new Fisher 440 is an instrument of unusually sophisticated design at moderate cost. Its silicon-transistor power amplifier circuitry will operate at high efficiency, even under the most demanding use.

It has an exclusive four-gang all-solid-state front-end that is free of distortion and overload. This highly conservative approach has been achieved by designing each part for operating conditions far in excess of anything one could possibly encounter in normal use.

The 440 possesses all of the well-known Fisher performance virtues. It attains unusually high sensitivity and selectivity and can 'pull in' the weakest FM signals even under the poorest receiving conditions. It maintains excellent stereo separation and has an abundance of reserve power to drive the most inefficient speaker systems. The result is sound reproduction that is unerringly as accurate, effortless and natural as the original.

In its range of flexibility and ease of operation, the Fisher 440 ranks among the finest Fisher FM receivers. All the controls are logically grouped on the front panel. These include a highly accurate dual-volume control, separate friction-lock bass and treble controls with the superior Baxandall circuit, a wide-range balance control, and effortless flywheel tuning.

The Program Selector has five positions: Tape Head, Phono, FM-Automatic, FM Mono, and Auxiliary. The 5-position Mode/Tape Monitor Switch (Mono, Stereo, Stereo Tape, Tape L and Tape R) is used to select the operating mode for the amplifier section and playback from tape decks or a tape recorder. It also enables one to use all tone controls during tape monitoring without changing cable connections. The last two positions, Tape L and Tape R, permit playback of each of the four tracks of a monophonic tape through both loudspeakers simultaneously.

Tuner Section:

.

  • • 2.0 hy FM sensitivity (IHF)
  • • Exclusive four-gang transistor front-end.
  • • Wide-band, solid-state IF strip.
  • • Four IF stages.
  • • Three limiters.
  • • Wide-band Ratio Detector.
  • • STEREO BEACON Automatic Stereo Switching.
  • • Muting switch eliminates interstation noise and weak or noisy stations.
  • • Illuminated d'Arsonval tuning meter.
  • • Two sets of antenna terminals accommodate local and distant stations, thus preventing overload by abnormally strong local stations.

.

Amplifier Section:

.

  • • 70 watts total IHF Standard music power output at 4 ohms.
  • • 50 watts total IHF Standard music power output at 8 ohms.
  • • Elimination of output transformers yields better transient response, lower distortion, and wider power bandwidth.
  • • Conservatively-rated silicon transistor power amplifier permits higher undistorted power output and long trouble-free operation.
  • • Design of output circuit prevents damage to power amplifier or power supply when speaker leads are shorted.
  • • Speaker selector switch permits convenient front-panel selection of either a pair of main
  • or auxiliary (remote) speaker systems.
  • • Front-panel headphone jack.
  • • High and Low Level magnetic inputs accommodate all types of magnetic cartridges.

.

The Fabulous Fisher 220-T AM-FM Stereo Receiver

The Fisher 220-T opens up a Golden Age in stereo listening pleasure. It offers the best of everything in high fidelity, at unusually moderate cost. On one beautifully integrated, compact chassis are the finest AM and FM reception facilities, a flexible group of master audio controls, a powerful 55-watt (IHF) amplifier, and most significant of all, world-famous Fisher engineering-the kind you can depend on for years of trouble-free service.

It is this engineering know-how that makes the 220-T exceptional. Costly Field Effect Transistors are used in the exclusive NEO-SYNCHRODE front-end to produce the purest possible signal reception, even under unfavorable conditions. This front-end is followed by four IF stages, three limiters, and a wide-band ratio detector. The over-all circuit provides a degree of sensitivity and selectivity that outdoes many costlier models.

The 220-T employs the time-division multiplex system - the best circuit available for maximum stereo separation. Two important convenience features are the exclusive STEREO BEACON multiplex decoder and the illuminated tuning meter.

The trademark, STEREO BEACON signifies this model has the exclusive convenience feature that automatically switches to the stereo mode, signals the presence of the stereo broadcast, and automatically switches back to mono again-according to the type of program being received.

The audio controls have been logically grouped on the front panel for ease of use. The four-position Program Selector (Phono, FM Auto, AM, Aux) provides a choice of virtually every type of program source. The dual bass and treble controls give high flexibility of tonal characteristics for precise adjustment to one's own taste. A front-panel headphone jack and speaker (main/remote) switch are included. In addition, a convenient switch introduces interstation muting on FM, when desired.

An indispensable aid to those who prefer to tape record program material is the Fisher Tape Monitor switch. This feature permits one to compare the quality of the original program with that of the material being taped, so adjustments can be made through the use of any control or switch, without changing cable connections.

The exclusive Fisher Tratisist-O-Gard TM Overload Protection circuit electronically protects the receiver from any damage due to overload, faulty speaker wiring, or any other cause.

The 220-T has facilities for connecting the Fisher Dynamic Spacexpander®, Model K-10 (ein primitives Hallgerät). This unique instrument adds the dimension of reverberation to sound. There are connections on the rear of the instrument for a tape recorder - including the new 8-track tape cartridge player with built-in preamplifier - and other auxiliary source.

The Fisher 220-T is remarkably compact considering its breadth of flexibility and high power. Only 15" wide, 4" high, and 11 deep, it can be easily fitted into the smallest space. This is an instrument that is unsurpassed in every aspect - performance, flexibility, engineering features, and cost. It will undoubtedly be the most popular Fisher component since the advent of the 'all-in-one' stereo receiver.

The World's Most Advanced Multiplex Stereo Tuners

The seven stereo tuners currently made by Fisher range from superior to incomparable. Each of them features extremely high front-end sensitivity, wide-band design, multiplex circuitry of the highly preferable time-division type.

The Fisher FM-90-B

FM-Multiplex Stereo Tuner

This instrument ranks among the finest FM tuners available anywhere and is considered the logical choice for those who must have Fisher quality, but at moderate cost. All the essentials required for flawless reception-superior sensitivity, outstanding multiplex reception and automatic mono-stereo signalling-are present. Even a front panel tape jack is included to provide an accessible receptacle for the tape recording of broadcast material.

The new Fisher three-gang golden syn-chrode front end is followed by three IF stages and two limiters and attains a sensitivity of 2.0 microvolts (IHF). Rated harmonic distortion is a low 0.5%. The multiplex section, engineered for use with wide-band IF stages and ratio detectors, produces outstanding stereo separation (35db IHF). Controls: Selector (Mono, Stereo, Stereo Filter) ; Power (AC Off, On) ; Tuning.

The Fisher FM-100-C

FM-Multiplex Stereo Tuner

Even if you are not technically minded, you cannot help but appreciate the operational simplicity and ingenious conveniences inherent in the FM-100-C. Here is a tuner of advanced design that is, quite literally, a model of perfection.

It features highly advanced muting circuitry, with the muting threshold adjustable via a front panel control. Stereo beacon automatic switching and a front-panel tape jack are among the other features.

The Nuvistor-golden synchrode front-end, followed by 4 IF stages and 3 limiters, and the transistorized, multiplex section of the superior time-division type, bring this instrument into the class of fully professional components. The sensitivity is an unusual 1.8 microvolts; Capture ratio-2.2 db; selectivity: 60 db. Controls: Selector (Mono, Automatic, Stereo Filter) ; Muting; Tuning.

The Fisher R-200-B

Transistorized FM-Stereo,
AM Multi-Band Short Wave Tuner


Here is the ideal tuner for those who prefer high quality reception of stereo and short wave broadcasts. Its superb facilities enable one to enjoy world-wide entertainment programs. Its sensitivity and selectivity approach the theoretical limits of tuner capability.

Except for three nuvistors (Miniröhren) in the FM front-end, the new Fisher R-200-B is fully transistorized. It has five frequency bands for the reception of high-sensitivity FM-Stereo, standard AM, weather, navigation, 41-meter to 19-meter short wave, and a 49-meter short wave band-spread scale. Wherever you go, wherever you are, the Fisher R-200-B will keep you in touch with the world of music and news. This instrument has 19 tuned circuits for maximum efficiency and stability. It operates magnificently even under adverse conditions, regardless of geographic location.

Only the finest grade components and parts have been used in its manufacture, and all have been specially treated to resist moisture and temperature variations. The high-sensitivity FM-section features a new version of the Fisher Golden Synchrode* front-end for high overload rejection. Exclusive Stereo Beacon* automatically signals if a broadcast is in stereo or mono, and automatically switches to stereo or mono operation.

Highest selectivity is maintained by using a tuned AM-RF stage and a
three-gang AM tuning capacitor. The Automatic Gain Control smooths out variations in signal strength, and minimizes slow or fast fading. This is particularly important on short wave reception.

The R-200-B has facilities for optimum performance in both the United States and abroad. A multi-tap transformer permits operation of the tuner on 50 to 60 cps power lines from 100 to 135 volts, and 200 to 250 volts.

Controls: Band Selector (FM, MW, LW, SW, 49M); AM Bandwidth (Sharp, Normal, Wide) ; FM-Stereo Mode (Mono, Auto, Stereo) ; Muting; Power (AC Off, On) ;Tuning.

The Fisher TFM-1000

All-Transistor Laboratory-Standard FM-Stereo Tuner

The TFM-1000 is the first FM-Stereo tuner with absolutely perfect facilities for receiving FM broadcasts. It has no traceable distortion. It will not overload. It achieves an unprecedented degree of excellence at every level - performance, flexibility, ease of operation, reliability, and elegant appearance. This remarkable instrument is intended for audio enthusiasts and professional users who appreciate and demand absolute perfection in a tuner.

The Fisher TFM-1000 has seven exclusive all-transistor circuits - more engineering 'firsts' than ever before incorporated in a single high fidelity component.

They are:
.

  • 1. Super Synchrode* Front End. The latest field effect transistors (FET) in a two-stage RF section with six tuned circuits and a four-gang variable capacitor.
  • 2. Overload Suppressor Circuit. This circuit automatically holds the incoming FM signal strength within acceptable limits to avoid overload distortion.
  • 3. Counter Detector Demodulator. A ten-megacycle-wide detector virtually eliminates drift and distortion.
  • 4. Symmetrical, Hard Limiter. Originally developed to rigid Space Age specifications, this limiter enables the Counter Detector Demodulator to operate at peak efficiency at all times.
  • 5. Four-Diode Coincidence Circuit. A special circuit in the time-division multiplex section eliminates false triggering by spurious signals.
  • 6. Clear Signal Indicator. A push-button activated indicator that displays the relative purity of received FM signals. This may be used as an indication of proper antenna orientation.
  • 7. Drive-Power Amplifier Circuit. Two special transformer driven outputs provide a high quality, low-impedance source for stereo headphones plus separate 600-ohm balanced termination, for professional use.

.
By any standard, there is no finer tuner in all the world.
Controls: Push-Button Mode Selector (Mono, Auto, Stereo, Stereo Filter) ; Muting; Clear Signal Indicator; Tuner Output Level; Headphone Volume Level; Tuning.

Two New Superb Transistorized FM Stereo Tuners
The Fisher TFM-200

FM-Multiplex Stereo Tuner

Fisher engineers have designed a reliable transistorized FM Stereo Tuner expressly for those who seek the many" advantages of solid state design, but at moderate cost.

In many respects, the TFM-200 compares favorably even with the most advanced studio-quality models. Its sensitivity and selectivity, the main criteria of a fine tuner, are well above average, and will permit reception of weak or distant stations. Its transistor design, enabling the unit to operate at very low temperatures, greatly increases over-all stability, and extends its life indefinitely.

The exclusive Fisher stereo beacon automatically identifies a stereo broadcast and automatically switches to the stereo mode, and back again. The illuminated d'Arsonval tuning meter affords precise center-of-channel tuning. The TFM-200 uses the Nuvistor-golden synchrode* front-end, four FM IF stages, and three wide-band limiters for very high overload rejection. A front-panel two-step muting control is provided to eliminate inter-channel noise or undesired, weak broadcasts.

The Fisher TFM-200 also has a front-panel tape output to facilitate tape recording of any broadcast. Tape recorder jacks on the rear of the set permit one to wire in a tape recorder for permanent installation.
Controls: Power (Off, On); Muting (Off, 1, 2) ; Four-Position Selector (Mono, Automatic, Stereo, Stereo Filter) ; Tuning.

The Fisher TFM-300

FM-Stereo-Multiplex Tuner

This entirely new solid-state tuner is a masterpiece of electronic design. Its circuitry represents the ultimate in solid-state technology and the latest ideas of the engineering group responsible for a long line of distinguished tuners.

The remarkable IHF sensitivity of 1.8 microvolts is assured by the exclusive Nuvistor-golden synchrode front end, and the five IF stages and five limiters. The IF strip has extremely low phase shift, while the front end combines the highest sensitivity with an overload rejection unattainable when using transistors alone. A ratio detector with a one-megacycle bandpass follows the limiters and assures optimum detection of multiplex signals, in addition to an unusually good capture ratio. The multiplex section is of the superior time-division type, utilizing a symmetrical transistor switch and a 38-kc synchronous oscillator. This circuit reduces noise to the theoretical minimum and achieves the greatest possible stereo separation - more than 40 db at 400 cps, an industry first.

In addition, the TFM-300 incorporates variable-threshold muting, controlled by a front-panel switch, plus a stereo filter, which eliminates noise on weak multiplex signals without affecting frequency response.
Controls: Power (Off/On) ; Level; Muting; Push-Button Selector (Filter, Stereo, Automatic, Mono) ; Tuning.

Technical Features and Specifications of Fisher Tuners

kommt noch

The Famous Fisher Integrated Stereo Control-Amplifiers

.

The Fisher X-100-C

50-Watt Stereo Control-Amplifier

Although the wide operational versatility and high performance standard of the X-100-C appear beyond its moderate cost, it is nevertheless the first low-cost control-amplifier with all the well-known Fisher qualities including long-term reliability, ease of operation, and an overwhelming abundance of convenience features.

The X-100-C has a 50-watt amplifier (IHF) with a low 0.5% harmonic distortion-the result of careful design and the use of top high quality parts throughout. Over-all frequency response is 20 to 20,000 cps, assuring faithful reproduction of a full orchestra or grand organ.

The Fisher genius for designing and engineering components with an inordinately wide frequency range and uniform response throughout that range is not only valid at low power (or 'normal listening levels' of only 1 watt) but at full output as well. Audible hum and noise are totally absent, whether in the softest of pianissimo passages, or full-throated orchestral passages. Hum and noise are at a very conservative 88 db below rated output. Superior technical specifications usually reflect only one facet of Fisher engineering capability.

Convenience features, another important criterion, are very readily apparent in the front-panel controls. The X-100-C has a front-panel jack for stereo headphones, with a speaker silencing switch for private stereo listening. The exclusive Fisher direct tape monitor permits tape monitoring followed by instantaneous playback with full use of all audio controls. A high-frequency filter of the sharp-cutoff type facilitates noise-free listening as well as cleaner tape recordings (because it operates before the recorder output). These are the essential conveniences one requires for today's advanced stereophonic systems.

They are not confined to the front panel controls; in the preamplifier a separate section of the power supply applies DC to the filaments of all critical tubes, for lowest hum and noise content. Type 7868 Novar output tubes are employed in the output stages to provide larger amounts of reserve power, plus high heat dissipation for longer tube life.

Another typical essential is a power-derived center-channel output to drive a third speaker, either for three-channel stereo or for remote mono. In either case, there is no longer any need for an additional amplifier to do the job.

Controls: Input Selector (Tape Head, Phono, Tuner, Auxiliary and Tape Play positions) ; Mode Selector (Mono, Stereo and Reverse positions) ; Left/Right Bass (concentric) ; Left/Right Treble (concentric) ; Balance; Volume (including AC Off).
Switches : Tape Monitor (On/Off); Speakers, (On/Off) ; High Filter (On/Off) ; Loudness' Contour (On/Off).

The Fisher X-101-D

66-Watt Stereo Control-Amplifier

Here is an amplifier designed for a very particular type of person-discriminating in his musical taste, unwilling to compromise on quality, but who, at the same time, must have the complete ease of handling in spite of full-range flexibility of controls.

The X-101-D represents a goodly degree of technical sophistication at its finest, includes a control panel that is highly advanced in total functions, and simplicity of design, and provides superior performance.

The sixty-six watts of music power (IHF) are more than enough to drive the most inefficient of speaker systems to full and glorious volume. Harmonic Distortion is a low 0.5%.

The X-101-D abounds with a treasure-house of convenience and comfort features. The exclusive Fisher direct tape monitor permits correct monitoring during tape recording without disabling any control function for tape playback.

An equalization switch for phono and tape provides accurate compensation for recording characteristics, eliminates excessive high-frequency noise and restores the shape of the original wave-form. The power-derived center-channel enables one to enjoy a third speaker for 'three-channel' stereo or a remote monaural speaker. All types of headphones may be connected to the front-panel receptacle. The magnificent panel is die-cast and 24-carat gold plated.
A front-panel jack for headphones and speaker silencing switch is also included.

Controls: Input Selector (Tape Head, Phono, Tuner, Auxiliary and Tape Play positions) ; Mode Selector (Mono, Stereo and Reverse positions) ; Left/Right Bass (concentric) ; Left/Right Treble (concentric) ; Balance; Volume (including AC Off).
Switches: Equalization (Tape/Phono) ; High Filter (On/Off); Speakers (On/Off); Tape Monitor (On/Off) ; Loudness Contour (On/Off).

The Fisher X-202-C

84-Watt Stereo Control-Amplifier

The X-202-C is the logical choice for those who seek everything that is truly exemplary in amplificatory components - exceptional performance, extreme flexibility, operational versatility combined with an ease of use that the layman can enjoy and an engineer can admire. It is designed for the audiophile, music lover and discerning audio connoisseur who must have the best.

As an instrument designed to be the virtual 'electronic brain' of any stereo system including the most professional, the X-202-C is amazingly versatile. Its eighteen inputs and ten outputs will accommodate every type of cartridge, tape head, tape recorder, and tuner currently available.

Some of its convenience features are noteworthy: two sets of low-level phono, and a microphone input to enable the amplifier to be used, if necessary, as a public address system. This instrument also provides instant switching from any source to the tape recorder, without changing cable connections. Two sets of speaker-silencing switches enable one to control two stereo speaker systems from one panel. The loudness contour control corrects even the most minute imbalance of the signal at the low and high frequency ends, for perfectly natural sound reproduction.

A front-panel headphone jack accepts a set of stereo or mono headphones. The X-202-C has facilities for three-channel stereo or remote mono.
Controls: Input Selector (Microphone, Tape Head, Phono 1, Phono 2, Tuner, Tape Play and Auxiliary) ; Mode Selector (Mono, Stereo and Reverse positions) ; Left/Right Bass (concentric) ; Left/Right Treble (concentric) ; Balance; Volume (including AC Off).
Switches: Tape Monitor (On/Off) ; Speakers 1 (On/Off) ; Speakers 2 (On/Off) ; Low Filter (On/Off) ; High Filter (On/Off) ; Loudness Contour (On/Off).

The Fisher X-100-A

40-Watt Stereo Master Control Amplifier

The X-100-A provides maximum circuit flexibility with simple-to-operate controls. It maintains the highest quality standards for which FISHER is famous yet remains within the moderate price range. This has been achieved on a superbly-engineered chassis, which combines a stereophonic preamplifier and dual-channel 40-watt power amplifier (2 x 20 watts IHF).

The front panel of the X-100-A has twelve controls and switches to permit the widest flexibility in either stereophonic or mono-phonic operation.
DC filaments on the low level audio input stages reduce hum and noise to inaudible levels. Although compact, it has ample reserve power to drive even the most inefficient of speaker systems to full volume in a large living room, without distortion. A brief listening session will prove conclusively that no high fidelity amplifier can surpass the X-100-A-except another FISHER amplifier.
Power output: 40 watts IHF, 17/17 watts RMS.
.

The Fisher X-101-C

60-Watt Stereo Control-Amplifier

This unique amplifier reflects a new approach to high fidelity. It has been designed for a particular type of person - one who is discriminating in his musical tastes and unwilling to compromise with quality, but who, at the same time, is seeking to avoid some of the complexities of high-quality stereophonic equipment.

The design of the X-101-C embodies the high degree of flexibility and technical sophistication for which Fisher products are famous, yet combines this with unheard-of functional simplicity. It is, in fact, so easy to use that even a child can operate it perfectly with but a minute or two of instruction. Only the 'must' controls - the program selector push buttons, the mode selector and the volume control - are in view. The other controls and switches, which are used less frequently, are concealed behind an attractively styled hinged door, yet are instantly accessible at the flick of a finger. The result of this approach is a new look in front panel appearance and a new standard in functional design.

Although operational simplicity is an important element in the design of the X-101-C, performance is also of the highest order. Sixty watts of music power are available - enough to drive the most inefficient of speaker systems to full room volume. Harmonic distortion at full rated output is a low 0.5%. Hum and noise are 80 db below rated output, assuring completely noise-free playback.

In addition, the X-101-C boasts such aids to pleasurable listening as the Fisher direct tape monitor, which permits correct monitoring during tape recording without disabling any control function for tape playback; plus a separate speaker selector switch, which enables the amplifier to act as a control center for stereo speakers, a center-channel speaker and a set of headphones. A power-derived center-channel speaker output is also provided, for three-channel stereo or remote mono. All types of headphones may be connected to the front-panel headphone jack.

Power output: 60 watts IHF, 27/27 watts RMS.

Two New Remarkable Transistorized Stereo Control-Amplifiers

.

The Fisher TX-200

90-Watt Transistorized Stereo Control-Amplifier

In its performance, ease of operation and convenience features, the new Fisher TX-200 compares favorably with the most advanced solid-state stereo components.

All the advantages of transistor circuitry and engineering, have been preserved without sacrifice of desirable features, including cooler operation, freedom from hum and microphonics, wider frequency response, and quick warm up.

What makes this instrument especially noteworthy is that it offers all these outstanding values, plus long-term Fisher reliability, at an unusually moderate cost.

The Fisher TX-200 has a powerful 90-watt stereo amplifier and a sophisticated group of controls and switches. It has a sufficient reservoir of power to drive two pairs of speakers. The front-panel headphone jack and speaker-silencing switch enable one to enjoy the world of stereo sound without disturbing others in the same room.
Controls: Input Selector (Mic, Tape Head, Phono High, Phono Low, Tuner, Aux); Mode Selector (Mono, Stereo, Reverse); Balance; Left/Right Bass (concentric) ; Left/Right Treble (concentric); Volume (including AC Off).
Switches (On/Off) : Tape Monitor; Main Speakers; Remote Speakers; Low Filter; High Filter; Loudness Contour.

The Fisher TX-300

100-Watt Transistorized Stereo Control-Amplifier

To describe this new solid-state component in all particulars would be to compile a lengthy list of superlatives. In every aspect of its design, from appearance to performance, this is a master-control-amplifier without peer. Combined within its compact chassis (less than 12" deep) are a versatile solid-state stereo preamplifier, featuring exceptionally low distortion and noise, and a 100-watt (IHF) stereo power amplifier, capable of exceptionally clean reproduction, even at the highest of power levels.

Sixteen inputs and ten outputs on the TX-300 accommodate every type of program source and recording instrument. Twenty-one controls and switches make possible total control of the sound by the listener. A front-panel jack is provided for the connection of headphones, and tape recorders can be connected to the amplifier via jacks on both front and rear panels.

Controls: Push-Button Input Selector (Tuner, Tape Player, Auxiliary, Low Level); Mode Selector (Mono, Stereo and Reverse positions); Left/Right Bass (concentric) ; Left/Right Treble (concentric); Volume (incl. AC Off); Low Level Input Selector (Tape
Head, Phono 17 Phono 27 Microphone) ;
Speaker Selector (Off, 1, 2, 1 + 2); Balance. Switches (On/Off) : Tape Monitor; Low Filter; High Filter; Loudness Contour.

Technical Features and Specifications of Fisher Amplifiers

kommt noch

Fisher Free-Piston 3-Way Loudspeaker Systems

No loudspeaker design in recent years has caused as much excitement among high fidelity connoisseurs as the Fisher XP-10. (Audio magazine called it "truly a step forward in smoothness, transient response and musical quality.")

The superb performance of the 5-cubic-foot XP-10 is the result of several highly sophisticated engineering features, two of which are now incorporated in the new bookshelf-size Fisher systems. One is the exclusive Fisher cotton, soft-dome tweeter, whose exceptional dispersion characteristics and uniquely smooth, resonance-free response result in the most natural-sounding treble range ever achieved.

The other important feature is the assignment of more than three octaves of the audible spectrum to the midrange channel, with a considerably lower bass-to-midrange crossover than is conventional. This equalizes the upper bass and lower midrange response to an unprecedented degree, completely eliminating the slightest suggestion of boxed-in 'bookshelf sound. Thus it becomes possible to own a moderately-priced bookshelf speaker whose sound is a close approximation of the XP-10 - which is just about the best sound there is.

The Fisher XP-6

Although the XP-6 is the least expensive of the three new Fisher bookshelf speaker systems, it maintains the high compliance and high efficiency of a professional-quality enclosure.

The XP-6 incorporates a 10-inch free-piston bass frequency speaker with a massive magnet system and butyl-impregnated half-roll surround for excellent low-frequency transient response. The free-piston concept, as developed by Fisher Engineering Laboratories and used in the 'XP' speaker series, incorporates a long-throw voice coil and suspension system, a high-compliance cone surround and high-flux-density magnet system. Cone motion is controlled by the uniform interaction between magnet and voice coil, eliminating overshoot,
cone oscillation, and any tendency to distort at high volume levels.
Utilizing a 10-inch bass driver with a 5%-pound magnet structure, and butyl-impregnated half-roll surround, the XP-6 also uses a 5-inch mid-range speaker which has been sealed off from the remaining enclosure by an AcoustiGlas-filled sub-enclosure, thus avoiding acoustic interaction between mid-range and woofer.

A peripherally-driven l 1/2-inch cotton, soft-dome high frequency speaker, has a wide frequency dispersion of 120 degrees in all planes, providing pure, uncolored sound extending well beyond the limits of audibility.

The Fisher XP-7

This new bookshelf system contains a complement of four speakers: one 12-inch bass driver, two five-inch mid-range speakers, and a 1%-inch cotton, soft-dome tweeter. Each of these elements has been carefully integrated into an enclosure of heavily-braced sheets of non-resonant 3/4-inch board finished in bonded walnut veneer.

The use of a larger bass driver, and the two mid-range speakers housed in a separate, sealed sub-enclosure, greatly enhance the over-all performance of the XP-7.

A low-loss 12 db-per-octave inductive-capaci-tive crossover network controls the frequency separation at 300 and 2,500 cycles. The low woofer-to-midrange crossover point eliminates the phasing problems inherent in systems where woofer and mid-range share the middle frequencies.

When connected to an amplifier of good quality, the XP-7 performs with astonishing realism. A complete transparency of tone greets the listener, and one is immediately struck by the faiiiasiic 'presence* of the program ... a steady, uncolored and full flow of sound that is clear, precise and unwavering regardless of amplitude.

Fisher 3-Way Loudspeaker Systems

.

The Fisher KS-1A Factory-Assembled Speaker System

Designed in the Fisher no-compromise tradition, this slim-line speaker reflects all the engineering quality and attention to detail expected of Fisher equipment. Within its compact cabinet, which measures only 18" wide, 24" high and 5%" deep, are three precision transducers, carefully matched for optimum performance. Bass tones are reproduced by a 10" woofer having a 30-cps free-air resonance and a high-compliance butyl-coated surround. The woofer magnet structure weighs 4% pounds. Frequencies between 1400 and 5000 cps are reproduced by a 5" sealed-basket speaker, which has an exceptionally flat response curve within this range. Overtones above 5000 cps are reproduced by a 3" wide-dispersion cone tweeter. The 3-way crossover network employs high-quality air-core coils.

The KS-1A may be placed on the floor, mounted in a bookshelf, or hung on a wall. (Accessories for wall-hanging are supplied.) The speaker requires only 10 watts input to achieve full room volume, but will handle up to 60 watts safely.

The Fisher KS-1 StrataKit

This was the first true slim-line speaker system available in kit form, and it is still the finest value in its field. It is identical to the KS-1 A, its factory-assembled counterpart, in every detail, except in cost. (See page 63 for information about the exclusive Fisher Strata-Kit method of kit construction.)

The Fisher XP-9

No less than five speakers, including three five-inch mid-range drivers, are housed in this highly advanced bookshelf system. The XP-9 exhibits all the latest Fisher advancements - a free-piston bass driver with an extra-heavy magnet structure; a cotton, soft-dome tweeter that is peripherally-driven for wide-frequency dispersion in all planes; and individually sealed and separate sub-enclosures for the mid-range.

Crossover is accomplished by means of an elaborate three-way network, designed for smooth transition between the frequency ranges of the three transducers. Network and speakers are all designed to complement one another's characteristics in order to achieve smooth over-all response. The crossover network utilizes both capacitive and inductive elements for controlled response and smooth transition at the crossover points of 300 and 2,500 cps.

Each of these elements, modified in accordance with the physical size of the system, have been carefully integrated into a basic enclosure consisting of heavily braced sheets of non-resonant, %-inch board with bonded walnut veneer.

The XP-9 is among the finest bookshelf speaker systems ever designed. It will perform with astonishing purity when connected to an amplifier of good quality. Over-all sound is exceptionally smooth, homogeneous, and solid.

Although this system is only 24" wide, 14" high and 12" deep, it has all the sound qualities of a large and very costly speaker, although it is actually medium-sized and medium-priced.

Two Unique Loudspeaker Systems
The Fisher XP-10 Consolette

The sound of the XP-10 must be heard to be believed. It is equal or superior to that of speaker systems at three and four times the price.

The woofer, for example, is a mammoth 15" transducer with a 6-lb. magnet structure and a free-air resonance of 19 cps. The midrange speaker is a full 8 inches in diameter - as large as the woofer in some economy systems. As a result of its relatively large size and special design, this speaker can handle the entire range of middle frequencies from 200 to 2500 cps, thus eliminating the possibility of phasing problems between woofer and mid-range. The midrange unit is housed in a separate, airtight sub-enclosure heavily packed with AcoustiGlas, preventing interaction with the bass speaker.

The high frequencies are reproduced by a peripherally driven hemispherical tweeter, with a soft cotton dome bonded directly to a light copper voice coil. By using a soft diaphragm driven on its periphery, high frequency reso-ances are eliminated, resulting in exceptionally pure, uncolored sound, extending well beyond the human limits of audibility.

The crossover network utilizes both capaci-tive and inductive elements for controlled response and smooth transition at the two crossover points of 200 and 2500 cps. Continuously variable balance controls for mid-range and treble speakers are provided on the rear panel. The cabinet is constructed from heavily braced sheets of dense, nonresonant flake board, with bonded walnut veneers.

The Fisher XP-15

The FISHER XP-15 is a speaker system of the highest caliber, designed for the uncompromising music lover and the audio perfectionist. It incorporates many of the engineering advancements pioneered by Fisher Radio Corporation-such as eddy-current woofer damping (U.S. Patent No. 3193627) and free-piston action.

A four-way speaker system, utilizing the FISHER exclusive lower and upper mid-range speakers, provides flawless reproduction of all program material. The two bass speakers, are each mammoth 12-inch transducers utilizing pure electrolytic copper voice coil forms to generate eddy currents which achieve frequency-linear damping of cone motion. The heavy magnet structures (six pounds each) achieve a very high flux density for precise control of the rigid, compliantly suspended moving masses. The open-air resonance of each superb bass transducer is 15 cps.

Four mid-range speakers provide ultra uniform reproduction of the complete mid-range frequency spectrum. Two 6-inch speakers, having a free air resonance of only 60 cps., reproduce the lower mid-range frequencies from 300 to 1000 cps. Two independent 5-inch speakers handle the upper mid-range from 1000 to 2500 cps. The use of separate lower and upper mid-range systems eliminates the phasing problems inherent in systems where the woofer and mid-range speakers 'share' the middle frequencies. The mid-range speakers are housed in separate air-tight sub-enclosures heavily packed with Acoustiglas to prevent interaction with the woofers.

The high frequencies are reproduced by a hemispherical tweeter with a soft cotton diaphragm bonded directly to a light copper voice coil. By using a soft instead of a rigid diaphragm, high frequency resonances are eliminated.

Fisher StrataKits

Now anyone can build just as fine components as Fisher.

That's right! The exclusive Fisher StrataKit method makes it so easy to build a high fidelity kit that all differences between the experienced and inexperienced kit builder become totally irrelevant. Whether you are a skilled electronic technician or a fashion model, you can now build a Fisher tuner, amplifier or speaker that is every bit as fine as a factory-wired unit.

Assembly of a Fisher StrataKit takes places by simple, errorproof stages (Strata). Each stage corresponds to a separate fold-out page in the uniquely detailed instruction manual. Each stage is built from a separate packet of parts (StrataPack) . Major parts come already mounted on the extra-heavy-gauge steel chassis. Wires are precut for every stage - which means every page. All work can be checked stage-by-stage and page-by-page, before proceeding to the next stage. You can't help ending up with a faultless Fisher high fidelity component when you build a StrataKit.
.

Fisher Stereo Amplifier StrataKits

.

The Fisher KX-90 StrataKit

40-Watt Stereo Control-Amplifier

The Fisher KX-90 was designed for those who seek an amplifier kit that conforms to Fisher standards, but at an unusually low cost. This Fisher StrataKit is well within the reach of all.

It has a rated music power output of 40 Watts (IHF) at a harmonic distortion of only 0.5%. This power affords a sufficient reserve to drive two pairs of speaker systems of good quality.

All the essential controls are included: a four-position Input Selector, Bass, Treble, Balance and Volume. A front-panel headphone jack and speaker-silencing switch permits private listening pleasure, without disturbing others in the same room. Fisher engineers have also included a comprehensive set of input and output facilities, including high and low Phono inputs to match all types of magnetic cartridges. Facilities for handling tape include a monitor, permitting one to use all controls and switches during tape playback without changing cable connections.

The Fisher KX-90 is the newest of the Fisher StrataKits and represents Fisher engineering at its finest. The front panel casting is 24-carat gold-plated and will retain its original magnificence indefinitely.

The Fisher KX-100 StrataKit

50-Watt Stereo Control-Amplifier (mit Röhren)

This master-control amplifier kit combines economy, versatility and high performance in a remarkably easy-to-build unit. Fifty watts of IHF music power output at a harmonic distortion of only 0.5% assures ample reserve power to drive even low-efficiency speakers. Through careful design and the use of DC on all low-level tube filaments, hum and noise are held 80 db below rated power, thus keeping the signal 'clean' even in the quietest of passages. Full control facilities have been provided, including a speaker silencing switch, high filter, loudness contour switch, and the famous Fisher DIRECT TAPE MONITOR. The input and output circuitry of the KX-100 assure the greatest possible versatility. Provision has been made to allow each pair of low-level inputs to accept either a tape head of a phorro cartridge, thus permitting connection of a turntable and a changer, or a changer and a tape transport, or two tape transports, etc., without need for additional switching. A power-derived center-channel output has also been included for three-channel stereo or a remote mono extension speaker. A headphone jack is available on the front panel of the amplifier.

From its complete input facilities to the large, conservative design of its ouput transformers, the KX-100 represents a top value at moderate cost to the audiophile. Controls: Input Selector (Tape Head, Phono, Tuner, Auxiliary and Tape Play positions) ; Mode Selector (Mono, Stereo and Reverse positions) ; Left/Right Bass (concentric) ; Left/Right Treble (concentric) ; Balance; Volume (including AC Off).
Switches: Equalization (Tape/Phono); High Filter (On/Off) ; Tape Monitor (On/ Off) ; Loudness Contour (On/Off) ; Speakers (On/Off).

The Fisher KX-200 StrataKit

80-Watt Stereo Control-Amplifier

Without question the finest control-amplifier kit currently available, the KX-200 is a prime example of Fisher engineering genius.

With a rated IHF music power output of 80 watts at a harmonic distortion of only 0.5% and a response of 10 to 110,000 cps (+0, -1 db) through the power amplifier section, this superb amplifier will provide flawless reproduction, from the most delicate violin pianissimo to the loudest orchestral crescendo. Beginning with the low-level stages, which use DC on all filaments for minimum hum and noise, all the way to the massive output transformers, the circuit of the KX-200 reflects careful, conservative design and a no-compromise engineering philosophy.

A look at the control panel and the chassis will give instant evidence of the remarkable versatility of the KX-200. Beside the full complement of controls which typifies every Fisher master-control-amplifier (such as dual friction-lock bass and treble controls, a high filter, the exclusive Fisher direct tape monitor, etc.), a stereo dimension control is also included, enabling you to vary the channel separation at will, from full stereo to monophonic. At the rear of the chassis, there is a precision d'Arson-val meter for setting and maintaining the bias and balance conditions in the output stage. A power-derived center-channel output is also included, permitting connection of a third speaker for either three-channel stereo or remote mono. A center-speaker level control enables you to vary the volume of this third speaker.

Controls: Input Selector (Magnetic-l,Mag-netic-2, Tuner, Auxiliary-1, Auxiliary-2); Mode Selector (Mono Phono, Reverse, Stereo, A, B); Center Speaker Level; Left/Right Bass (concentric); Left/Right Treble (concentric); Balance; Stereo Dimension ; Volume (incl. AC Off).
Switches: Equalization (Tape/Phono); High Filter (On/Off); Tape Monitor (On/ Off); Loudness Contour (On/Off).

The Fisher KM-60 StrataKit

FM-Multiplex Stereo Tuner (with exclusive stereo beam )

The KM-60 necessarily ranks among the finest tuners available - kit or no kit. With its wide-band design and 1.8 microvolt IHF sensitivity, this outstanding tuner delivers superb reception, even in fringe areas. Further evidence of its superior performance are the signal-to-noise ratio of 70 db and the harmonic distortion of less than 0.5%.

Every detail reflects the caliber of engineering that has made the Fisher name famous throughout the world. A precision d'Arsonval tuning meter is included for exact center-of-channel tuning, while the exclusive Fisher stereo beam indicates automatically whether or not a station is broadcasting in stereo. An FM-stereo subcarrier filter eliminates noise on weak stereo signals while leaving the frequency response unaffected.

All difficult wiring and critical alignments are done in advance at the factory. The front-end and multiplex sections come prewired, pre-aligned and tested for highest sensitivity, lowest noise and optimum stereo reception. All that is needed is a touch-up alignment of the IF stages, which even the least experienced kit-builder can accomplish while simply watching the front-panel meter. Alignment is completely nontechnical and noncritical. Anyone who can handle a screwdriver can adjust the tuner for the best possible performance.
The final result is a tuner of the highest quality, with truly outstanding specifications and such 'extras' as individual level controls for each channel, tape recording facilities, and separate antenna connections for 'local' and 'distant' reception.
Controls: Selector (Mono, Stereo); Stereo Filter (Off/On); Power (Off/On); Tuning.

New Idea In Stereo Convenience 1965:
Compact Fisher Stereo Systems

Wir nennen das Billig-Stereo oder Billig-Hifi.

The most desirable features of a ready-to-play console and separate high fidelity components are now available in one, compact home entertainment center that, in performance and reliability, is in a class with fine studio-quality equipment. These music centers have superb performance and convenience features, as well as the reliability of a Fisher-engineered high fidelity system. They are easy to operate, yet capable of delivering all the high power and flexibility of control required by the most discerning audio connoisseur and professional user.

Why Fisher Owners Keep On Being Fisher Owners

Eine Menge der Lobeshymnen und des Eigenlobes haben wir bereits übersprungen, doch hier wollen wir nochmal reinschaun:
.

Engineering Without Equal

One need only evaluate the products and inventions bearing the Fisher name to realize the calibre and thoroughness of Fisher engineering. One recent example is the Fisher 600, the world's finest transistorized FM receiver. Fisher engineering leadership has prevailed since the founding of our business, in 1937.

Test and Inspection

Every single part in a Fisher instrument, whether you can see it or not, has been selected as though it were the most important part. It is subjected to constant scrutiny and test - from the moment it arrives at our Receiving Department, to the moment the complete instrument is placed in a dust-free, moisture-free plastic bag and sealed in its container for shipment to our customers.

Automated Electronic Test

Every electronic test and alignment procedure to which a Fisher instrument is subjected is handled by fully automated instruments designed and built in our own laboratories by Fisher engineers. Every single piece of equipment receives the same complete and thorough tests. In this vital work all possible errors due to oversight or fatigue have been eliminated.

Relentless Quality Control

Often Fisher standards for component material are so high that there is nothing commercially available. Dual controls for stereo use with uniform tracking did not exist in practical form until Fisher engineers set up measuring and testing techniques for our control manufacturers to follow.

Ironclad Packaging

No matter how fine a product, no matter how carefully it is made and tested, its mission cannot be accomplished unless it reaches you, the user, in the same flawless condition in which the final inspector approved it. The carton in which every Fisher instrument is protected and shipped is itself engineered.

Instruction Manuals

The moment you see your first Fisher Installation and Operating Manual you will know that it is the most complete, easiest to understand, in the entire field. For it was written with affection and respect, written by one who is himself a high fidelity enthusiast, and thoroughly familiar through personal use with the equipment about which he writes.

After-Sales Service

No matter where you live, you are never far from Fisher parts and service. Replacement parts, should they ever be necessary, are shipped immediately on request. We still have parts on hand for units we made twenty years ago - parts that were never needed, but still wait their turn to demonstrate the true meaning of the Fisher name on the product you buy.

Jetzt sind wir auf Page 76 - PRINTED IN U.S.A.

und jetzt kommt der letze Rundumschlag :

FISHER FIRSTS - die Meilensteine von The Fisher

Milestones in the History of High Fidelity Reproduction
.

  1. 1937 First high-fidelity sound systems featuring a beam-power amplifier, inverse feedback, acoustic speaker compartments (infinite baffle and bass reflex) and magnetic cartridges.
  2. 1937 First exclusively high-fidelity TRF tuner, featuring broad-tuning 20-20,000 cycle fidelity.
  3. 1937 First two-unit high-fidelity system with separate speaker enclosure.
  4. 1938 First coaxial speaker system.
  5. 1938 First high-fidelity tuner with amplified AVC.
  6. 1939 First dynamic range expander.
  7. 1939 First 3-way speaker in a high-fidelity system.
  8. 1939 First center-of-channel tuning indicator.
  9. 1945 First preamplifier-equalizer with selective phonograph equalization.
  10. 1948 First dynamic range expander with feedback.
  11. 1949 First FM-AM tuner with variable AFC. 1952 First 50-watt all-triode amplifier.
  12. 1952 First self-powered master audio control.
  13. 1953 First self-powered, electronic sharp-cutoff filter system for high-fidelity use.
  14. 1953 First universal horn-type speaker enclosure for any room location and any speaker.
  15. 1953 First FM-AM receiver with a cascode front end.
  16. 1954 First low-cost electronic mixer-fader.
  17. 1954 First moderately priced professional FM tuner with two meters.
  18. 1955 First peak power indicator in high fidelity.
  19. 1955 First master audio control chassis with five-position mixing facilities.
  20. 1955 First correctly equalized, direct tape-head preamplifier with self-powered master audio control.
  21. 1956 First to use power monitor in a home amplifier.
  22. 1956 First all-transistor preamplifier-equalizer.
  23. 1956 First dual dynamic limiters in an FM tuner for home use.
  24. 1956 First performance monitor in a high-quality amplifier.
  25. 1956 First FM-AM tuner with two meters.
  26. 1956 First complete graphic response curve indicator for bass and treble.
  27. 1957 First GOLDEN CASCODE FM tuner.
  28. 1957 First MicroRay tuning indicator.
  29. 1958 First stereophonic radio-phonograph with magnetic stereo cartridge.
  30. 1959 First high-quality stereo remote control system.
  31. 1959 First complete stereophonic FM-AM receiver (FM-AM tuner, audio control, 40-watt amplifier).
  32. 1959 First high-compliance plus high-efficiency Free-Piston loudspeaker system.
  33. 1960 First to use MicroRay for FM tuning and as a recording audio level indicator.
  34. 1960 First complete stereo FM-AM receiver with 60-watt power amplifier and new 7591 output tubes.
  35. 1960 Smithsonian Institution, Washington, D. C, receives for its collection America's first commercially manufactured high-fidelity radio-phonograph, made by Avery Fisher in 1937.
  36. 1960 First reverberation device for use in high fidelity equipment - the Fisher Dynamic Spacexpander.
  37. 1960 First stereo tuner with MicroTune. 1960 First FM tuner with six IF stages. 1960 First FM tuner with five limiters.
  38. 1960 First front-panel antenna selector switch, 72-300 ohm, Local-Distant positions.
  39. 1961 First FM-Stereo multiplex adapter with STEREO BEACON and automatic switching, mono to stereo.
  40. 1961 First complete FM-multiplex stereo receivers.
  41. 1961 First FM-stereo tuners with STEREO BEACON and STEREO BEAM.
  42. 1961 First internal switching system to permit immediate tape playback with use of all controls and switches.
  43. 1961 First loudspeaker system with frameless woofer cone, to eliminate all parasitic resonance.
  44. 1962 First simplified-operation control-amplifier, with infrequently used controls behind front-panel cover, yet immediately accessible.
  45. 1962 First loudspeaker with eddy-current-damped voice coil.
  46. 1962 First bass speaker with combined serrated-aluminum and fiber cone.
  47. 1962 First FM tuner kit with separate d'Arsonval meter for tuning and separate cathode ray stereo broadcast indicator (STEREO BEAM).
  48. 1963 First to use 8417 tubes with unique cavity-anode design.
  49. 1963 First power amplifier to use oscilloscope-type frequency-compensated input circuit.
  50. 1963 First amplifier kit with STRATA-BALANCE visual dynamic balancing system.
  51. 1964 First multiplex adapter with 'flywheel synchronization.' Closely approaches theoretical limit of noise rejection, and of all spurious responses.
  52. 1964 First AFC with strong locking on weak signals, with no pull-in from adjacent strong signals.
  53. 1964 First FM Stereo Tuner with STEREOSCAN.
  54. 1964 First peripherally-driven tweeter with cotton, soft dome.
  55. 1964 First to use TUNE-O-MATIC circuitry in an FM tuner.

.

The Largest, Most Modern New Plant in the High Fidelity Industry

Situated in 40-Acre Fisher Park, Milroy, Pa.

This 120,000-square-foot structure, designed by Gerhard E. Karplus, A.I.A., and situated in the rolling hills of Central Pennsylvania, reflects the latest techniques in industrial building. The plant was built to provide facilities for the most meticulous production of advanced high fidelity equipment. There is no other like it.
These new facilities are in addition to those at the Fisher Headquarters Building in Long Island City, N. Y., Lewistown, Pa., and at Belleville, New Jersey.
.

- Werbung Dezent -
Zurück zur Startseite © 2007/2019 - Deutsches Hifi-Museum Wiesbaden - Copyright by Dipl. Ing. Gert Redlich - DSGVO - Privatsphäre - Zum Telefon der Redaktion - Zum Flohmarkt
Bitte einfach nur lächeln: Diese Seiten sind garantiert RDE / IPW zertifiziert und für Leser von 5 bis 108 Jahren freigegeben - kostenlos natürlich.

Privatsphäre : Auf unseren Seiten werden keine Informationen an google, twitter, facebook oder andere US-Konzerne weitergegeben.