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"off duty" 1970 - 1997 - eine Freizeit-Zeitung für's US-Militär

Die in diesem amerikanischen (Freizeit-) Shopping-Magazin angepriesenen Hifi- und Video-Produkte waren auschließlich amerikanischen und kanadischen Militärangehörigen zugänglich - also zu kaufen - und vor allem zu ganz ungewöhnlich (verblüffend) niedrigen US $ Military-Preisen. Zu der einführenden "off duty" Seite geht es hier lang. -  Um 1970 begann der weltweite Hifi-Boom bis zum 1. Crash 1978 und dann wieder zum 2.Crash um 1990. Über die 20 Jahre nach 2001 lesen Sie mehr auf dieser japanischen Seite.


Getting Stranger Every Day

Cassette and cartridge machines have come into their own - By LARRY MYERS - Off Duty / Europe / May 1975


CASSETTE AND CARTRIDGE tape equipment has been cast for years in the role of David, doing battle with the open-reel Goliath. And, like David, the little cassettes and cartridges have proven themselves a fair match for their larger competitor.

Today's cassette and, to a lesser degree, cartridge units offer performance and features that make even confirmed open-reel tape fans take notice.

Noise reduction circuits, automatic reverse, solenoid controls and peak reading meters are among the quality features that you can now find on small as well as large tape machines. And there are others, such as memory rewind and automatic bias and equalization switching for chromium dioxide tape, that are available only in the smaller format.

8-Track ist wieder auf dem Vormarsch

The picture is also changing in the competition between cassette and cartridge. While cartridge units have long been the poor cousins, lagging behind cassettes in hi-fi technology, they are now receiving a fair share of attention from manufacturers. Several new cartridge machines boast noise reduction circuitry and other features offered previously only on better grade cassette units.

Blank tape makers, too, are eyeing the cartridge recording market, and low-noise blank cartridges are now appearing. So there are more options than ever to consider before you make a decision as to which type to buy.


First, let's look at what is sealed inside those little plastic cases. A cassette contains two small winding spools and a length of tape 5/32 inch wide, moving at 1 7/8 inches per second. A pair of stereo tracks can be recorded in each direction for a total playing time of 30, 60, 90 or 120 minutes, depending on the tape length.

Because it contains two reels, a cassette can be rewound. It may be used for mono or stereo recording, but not, as yet, for discrete 4-channel. Cartridges contain a continuous loop of tape on a single wind/rewind spool.

The tape is 1/4 inch wide (the same width as on open reel recorders) and moves at 3 3/4 inches per second. It will accommodate four pairs of stereo tracks for a total of eight tracks - but all in one direction as the loop cannot be reversed. Playing times are usually about 40, 60 or 80 minutes. Cartridges may be used for stereo or discrete 4-channel recording.


Next, before you select a cassette or cartridge unit, consider how you plan to use it. Decks are meant strictly for connection to a stereo system, just as you might connect a turntable. Recorders usually contain their own amplifiers and speakers.

Despite the differences in nomenclature, both decks and recorders can record and play tapes. If you want a self-contained unit for playing tapes then a recorder is the way to go. Should you decide later to buy a stereo component system you can still use your recorder as a deck, simply bypassing its built-in amplifier and speakers, to record or play tapes through the system. On the other hand, if you already have a stereo rig you probably need only a deck.

Where you plan to use your tape unit is also a factor. Home-type decks and recorders require ac current, while battery-powered portables work anywhere but generally don't match the performance or features of the best home units. Also, nearly all portable units are recorders, while the home-type category offers an ample selection of both decks and recorders.

Nuts and Bolts.

Mechanically, both cassette and cartridge machines are designed to move the tape past magnetic tape heads. Cassette units employ one, two or three motors; a cartridge machine needs only one because it drives a continuous loop of tape, on a single spool, in one direction.

Cassettes are essentially miniature reel-to-reel devices. In a single-motor cassette design, mechanical linkages drive the capstan and the take-up and rewind spools. Two-motor units use separate motors to drive the capstan and turn the spools.

In three-motor machines, each spool has its own motor, as does the capstan. The more motors, the better the performance. Some of the more costly multi-motor units employ a slow-speed, direct-drive capstan motor to minimize fluctuation in capstan speed (wow and flutter) and further improve performance.

Tape motion controls.

Most cassette and cartridge units have record, play, fast forward, pause and stop controls. Cartridge units may also have continuous play and repeat controls, while cassette units have a reverse or rewind function. Automatic end-of-tape shutoff is also common on both formats.

Cassette machines may have two additional features that aren't possible with cartridge units, memory rewind and automatic reverse. Memory rewind lets you program the cassette machine to automatically rewind the tape to a point you've selected - for example, the beginning of a favorite song.

Automatic reverse changes the direction of the tape at the end and plays the other set of tracks. Machines of either format may have solenoid-operated controls. The real advantage of these is not so much their light touch and ease of handling, but the associated "logic" circuits included in the latest designs. They prevent tape damage even if you press the wrong button by mistake.


While the considerations of weight and size (and their high cost) put limits on what a designer can do to the mechanical innards of a tape machine, electronic circuitry is another story. It isstill improving dramatically,and at a relatively low cost, thanks to increased miniaturization.

Noise reduction.

There are several noise reduction systems available, but the Dolby "B" circuit is now nearly universal for home recording. Its function is to supress high frequency noise or hiss. Dolby noise reduction circuitry is built into most top quality cassette equipment and is now being added to many cartridge machines. Some Dolby-equipped cassette units now have a special switch to allow direct recording of Dolbyized FM broadcasts with the proper de-emphasis, while also decoding the signal that you hear during recording.

Recording level.

As a visual aid to monitoring the recording level, just about every cartridge or cassette machine employes VU meters, but even the best of them fail to respond fast enough to warn of distortion-producing recording level peaks. Now some units are incorporating fast-acting light emitting diodes (LEDs) to warn of such situations.

In addition, many machines have level-controlling circuits that reduce gain if excessive levels are approached. On some models the automatic recording level control is on continuously, while on others the user decides if it is needed or not.

Tape selection.

Many of the new tapes require bias and equalization settings that differ from those used for conventional iron oxide formulations. Some cassette machines include front-panel switches to adjust the circuitry for regular, chromium dioxide or other tapes. A few cassette models switch automatically between regular ferridoxide and chromium dioxide formulas, as the lattertype is keyed by means of a slot in the cassette itself.


Deck or recorder, cassette or cartridge, home-type or portable, in every case it is the specifications explained below that are your index to performance.

Flutter and wow.

This figure tells you how much the speed of the tape varies from the norm. It is usually expressed in hundredths of one percent. The lower the figure, the more accurate the reproduction, otherthings being equal. Aflutter and wow figure of 0.2 per cent or less is generally acceptable.

Signal to noise ratio.

This is a measure of the level of recorded signal as opposed to the background noise level and is expressed in decibels (dB). The relative noise level may be given as a minus figure (-25 dB, for example) or without the minus sign (25 dB) as we do in our listings. Both mean the same thing. Look for a 40 (or -40) dB or higher S/N ratio. If the unit is equipped with noise reduction circuitry, figures of 50 to 60 dB are possible.

Frequency response.

Some advanced cassette models boast frequency responses as high as 20k Hz, thanks to new high-energy tape formulas and special equalization to compensate for the natural decrease of treble response at the cassette's tape speed of 1 7/8 inches per second. Even on the average home-type cassette machines you can expect a 30-15k Hz response or better.

With cartridge units the range is somewhat less, but they are beginning to catch up.

Power output.

This figure is of concern only if you are interested in a recorder. Most recorder amplifiers produce 3 to 5 watts per channel, which is sufficient for their built-in loudspeakers. Since units claiming a power output of two or more watts per channel must conform to the Federal Trade Commission's new rating procedures, you can expect to soon see recorder output ratings changed to conform to the rules.

Other features.

Front loading is found on more and more home-type cassette machines. While it doesn't affect performance, some people find it more convenient than top loading.

Many home units also include tape motion indicators that tell you the tape is moving. Output level controls are another feature found on home-type machines in both formats, as are microphone and line inputs and mixing.

Portable units may have a microphone built in and possibly a radio tuner as well. And, because the machines depend on dry cells for their power,the VU meters of some portables also double as a battery condition indicator.

Wir überspringen hier die Liste der Hersteller und gehen zur Military Preisliste :

Nocheinmal zum Verständnis, das sind nur die kaufbaren Cassettengeräte von 1974/75, die in den amerikanischen Military Shops angeboten werden - und das sind bei weitem nicht alle. Der eigentliche Boom kommt ja erst noch, wenn sich - in ein paar Jahren - alle Japaner auf diese Lücke gestürzt haben. Zum Ende der Cassettenzeit waren es mehr als 10.000 verschiedene Modelle, die aus dem fernen Osten auf den Weltmarkt strömten.


Die (Military)- Price List - May 1975

General Electric M-8616 AAFES, Europe $ 53.00
Herton 461 Clubs, about $ 98.00
General Electric TA-600 AAFES, Europe $ 98.00
Akai CR-81D Clubs, about $ 101.00
Pioneer HR99 AAFES, Europe $ 103.00
Dokorder MC-60 AAFES, Europe $ 121.00
Weltron 2001 AAFES, Europe $ 126.00
Panasonic RS-806US AAFES, Europe $ 137.00
JVC-Nivico 1260U AAFES, Europe $ 144.00
JVC-Nivico ED-1240U Clubs, about $ 149.50
Dokorder MC-70A AAFES, Europe $ 150.00
Skandia IC SK-308 Clubs, about $ 164.00
Akai GXR-82D Clubs, about $ 179.20
Panasonic RE-8420 AAFES, Europe $ 195.00
Panasonic RS-818 AAFES, Europe $ 214.00
Panasonic RS-855US. AAFES, Europe $ 214.00
Akai CR-80DSS Clubs, about $ 218.40
Technics RS-858DUS Clubs, about $ 236.00
Aiwa TPR-4001H Clubs, about $ 279.40

Die (Military)- Price List - May 1975

General Electric M8433 AAFES, Europe $ 23.50
General Electric M-8445 AAFES, Europe $ 34.00
Sony TC-85 Clubs, about $ 34.75
Sanyo M-2211 Clubs, about $ 35.00
Sony TC-61 AAFES, Europe $ 39.50
Philips EL-3302 AAFES, Europe $ 39.50
Toshiba KT-21 3 AAFES, Europe $ 41.25
Panasonic RQ-416S AAFES, Europe $ 43.50
Panasonic RQ-209MS AAFES, Europe $ 49.50
General Electric M-8525 AAFES, Europe $ 51.00
Panasonic RQ-413 Clubs, about $ 56.00
Toshiba KT-21 5D AAFES, Europe $ 59.00
Panasonic RQ-316 Clubs, about $ 60.00
Superscope C-103 Clubs, about $ 62.00
Panasonic RQ-212 AAFES, Europe $ 64.50
Panasonic RQ-432S PACEX $ 67.00
Sony TC-67 Clubs, about $ 68.35
Crown CRC-435FW Clubs, about $ 69.00
Superscope CR-1000 AAFES, Europe $ 69.50
Toshiba RT-294F AAFES, Europe $ 71.50
Sanyo M-241 1 F Clubs, about $ 72.50
Superscope CR-1300 Clubs, about $ 75.00
Sanyo M-4420 Clubs, about $ 76.00
Sanyo M-2420 Clubs, about $ 76.00
JVC-Nivico 931OE PACEX $ 77.00
Toshiba KT-21 6 AAFES, Europe $ 79.50
Toshiba KT-403D AAFES, Europe $ 79.50
Aiwa TPR-1 01 H AAFES, Europe $ 79.50
JVC-Nivico 1610U AAFES, Europe $ 79.50
Sanyo M-241 9N/L Clubs, about $ 80.00
Sanyo M-2505 Clubs, about $ 81.00
Sanyo TRC-1 100 Clubs, about $ 82.00
Aiwa TP-747 Clubs, about $ 83.60
General Electric TA-700 AAFES, Europe $ 84.50
Crown CRC-475FW Clubs, about $ 85.00
Superscope CD-301 Clubs, about $ 85.00
JVC-Nivico 9425E PACEX $ 85.50
Aiwa TPR-601EE AAFES, Europe $ 85.50
Aiwa TP-770 Clubs, about $ 86.35
Sanyo M-2519 Clubs, about $ 88.50
Panasonic RS-260US AAFES, Europe $ 90.00
Panasonic RF-7100 PACEX $ 94.50
Sony TC-42 AAFES, Europe $ 94.50
SonyTC-146A Clubs, about $ 97.45
Toshiba RT-313F AAFES, Europe $ 99.00
Sony CF-320 AAFES, Europe $ 99.00
JVC-Nivico 9310LS/LF Clubs, about $ 100.00
JVC-Nivico 9315LS/LF Clubs, about $ 100.00
Sanyo M-2440LZ Clubs, about $ 100.00
Sanyo RD-4530 Clubs, about $ 102.00
JVC-Nivico 9403LS/LF Clubs, about $ 103.50
Aiwa TM-405 Clubs, about $ 103.70
JVC-Nivico 9425LS Clubs, about $ 104.70
Superscope CS-200 Clubs, about $ 108.00
Aiwa TPR-202H AAFES, Europe $ 108.00
Panasonic RQ-454 Clubs, about $ 1 10.00
Pioneer CT-31 31A Clubs, about $ 110.00
JVC-Nivico 9407LS/LF Clubs, about $ 110.90
Sanyo M-2450 Clubs, about $ 111.00
AiwaTPR-210EE AAFES, Europe $ 112.00
Aiwa TPR-203EE Clubs, about $ 1 16.00
SonyTC-92 Clubs, about $ 116.50
Sony CF-310L Clubs, about $ 119.35
Superscope CD-302A Clubs, about $ 125.00
Sony TC-55 AAFES, Europe $ 126.00
JVC-Nivico 9408LS/LF Clubs, about $ 127.00
Aiwa TPR-220H Clubs, about $ 127.00
Panasonic RS-450 Clubs, about $ 128.00
JVC-Nivico CD-1655U Clubs, about $ 130.75
Akai CS-33D AAFES, Europe $ 131.00
Panasonic RQ-448S AAFES, Europe $ 131.00
JVC-Nivico ED-261U/1261F Clubs, about $ 134.00
Aiwa TPR-220EE Clubs, about $ 135.00
Sony CF-420L Clubs, about $ 1 36.65
Teac A-140 Clubs, about $ 143.70
Sony TC-337 Clubs, about $ 148.50
Sony TC-1 29 Clubs, about $ 1 53.45
Sanyo M-2480K Clubs, about $ 154.50
Akai GXC-41D AAFES, Europe $ 156.00
Philips N-2509 AAFES, Europe $ 156.00
'Pioneer CT-4141A Clubs, about $ 159.00
Aiwa AD-1200 Clubs, about $ 160.60
Panasonic RS-451 Clubs, about $ 162.40
Technics RS-610 Clubs, about $ 162.50
Pioneer CT-51 51 AAFES, Europe $ 163.00
Technics RS-263US AAFES, Europe $ 163.00
Akai GXC-38D Clubs, about $ 166.90
Sony TC-1 24CS Clubs, about $ 166.90
JVC-Nivico 1667U Clubs, about $ 167.00
Sanyo RD-4300 Clubs, about $ 171.00
Sony TC-1 33CS Clubs, about $ 171.75
Sony TC-1 34SD AAFES, Europe $ 176.00
Sony TC-1 31SD AAFES, Europe $ 182.00
Sony TC-1 26CS Clubs, about $ 188.00
Technics RS-271US AAFES, Europe $ 188.00
JVC-Nivico 1668U AAFES, Europe $ 188.00
Sony TC-1 65 Clubs, about $ 189.30
Kenwood KX-700 Clubs, about $ 192.00
Teac A-160. AAFES, Europe $ 195.00
Pioneer CT-F6161 Clubs, about $ 195.00
Sansui SC-636 Clubs, about $ 195.90
Akai GXC-46D Clubs, about $ 200.50
Kenwood KX-710 Clubs, about $ 202.00
Technics RS-277 Clubs, about $ 202.50
Pioneer CT-F7171 AAFES, Europe $ 204.00
Aiwa AD-1300 Clubs, about $ 206.00
Sony TC-1 52SD Clubs, about $ 207.00
Aiwa TPR-930EE Clubs, about $ 212.30
Toshiba PT-470 AAFES, Europe $ 214.00
Yamaha TB-700 Clubs, about $ 216.00
Sony CF-550A Clubs, about $ 218.00
Aiwa TPR-3010H Clubs, about $ 218.90
Sony TC-1 37SD AAFES, Europe $ 233.00
JVC-Nivico MC-1820L Clubs, about $ 243.50
Harman/Kardon HK-1000 Clubs, about $ 246.40
Aiwa AD-1500 Clubs, about $ 247.50
Sony TC-1 36SD Clubs, about $ 248.65
Sony TC-332 Clubs, about $ 255.50
Teac A-360 AAFES, Europe $ 261.00
SonyTC-161SD Clubs, about $ 262.00
JVC-Nivico 9470LS AAFES, Europe $ 271.00
Sony TC-203SD Clubs, about $ 272.00
Technics RS-276US Clubs, about $ 274.00
Akai GXC-75D Clubs, about $ 290.10
Technics RS-296US AAFES, Europe $ 291.00
Akai GX-510D. AAFES, Europe $ 291.00
Teac A-450 AAFES, Europe $ 295.00
Sony TC-1 53SD Clubs, about $ 295.70
Advent 201 Clubs, about $ 300.00
Nakamichi 500 Clubs, about $ 310.50
Technics RS-676 Clubs, about $ 319.20
Sanyo RD-4600 Clubs, about $ 325.00
Tandberg TCD-310 Clubs, about $ 330.00
Sony TC-331 Clubs, about $ 362.00
Technics RS-279US Clubs, about $ 365.00
Sony TC-209SD Clubs, about $ 403.00
JVC-Nivico CD-1669U Clubs, about $ 407.00
Sony TC-1 77SD Clubs, about $ 622.75
Nakamichi 700 Clubs, about $ 665.00
Nakamichi 1000 Clubs, about $ 989.00

Nochmal nur zum Zählen aufgelistet


  1. General Electric M8433
  2. General Electric M-8445
  3. Sony TC-85
  4. Sanyo M-2211
  5. Sony TC-61
  6. Philips EL-3302
  7. Toshiba KT-21 3
  8. Panasonic RQ-416S
  9. Panasonic RQ-209MS
  10. General Electric M-8525
  11. Panasonic RQ-413
  12. Toshiba KT-21 5D
  13. Panasonic RQ-316
  14. Superscope C-103
  15. Panasonic RQ-212
  16. Panasonic RQ-432S
  17. Sony TC-67
  18. Crown CRC-435FW
  19. Superscope CR-1000
  20. Toshiba RT-294F
  21. Sanyo M-241 1 F
  22. Superscope CR-1300
  23. Sanyo M-4420
  24. Sanyo M-2420
  25. JVC-Nivico 931OE
  26. Toshiba KT-21 6
  27. Toshiba KT-403D
  28. Aiwa TPR-1 01 H
  29. JVC-Nivico 1610U
  30. Sanyo M-241 9N/L
  31. Sanyo M-2505
  32. Sanyo TRC-1 100
  33. Aiwa TP-747
  34. General Electric TA-700
  35. Crown CRC-475FW
  36. Superscope CD-301
  37. JVC-Nivico 9425E
  38. Aiwa TPR-601EE
  39. Aiwa TP-770
  40. Sanyo M-2519
  41. Panasonic RS-260US
  42. Panasonic RF-7100
  43. Sony TC-42
  44. SonyTC-146A
  45. Toshiba RT-313F
  46. Sony CF-320
  47. JVC-Nivico 9310LS/LF
  48. JVC-Nivico 9315LS/LF
  49. Sanyo M-2440LZ
  50. Sanyo RD-4530
  51. JVC-Nivico 9403LS/LF
  52. Aiwa TM-405
  53. JVC-Nivico 9425LS
  54. Superscope CS-200
  55. Aiwa TPR-202H
  56. Panasonic RQ-454
  57. Pioneer CT-31 31A
  58. JVC-Nivico 9407LS/LF
  59. Sanyo M-2450
  60. AiwaTPR-210EE
  61. Aiwa TPR-203EE
  62. SonyTC-92
  63. Sony CF-310L
  64. Superscope CD-302A
  65. Sony TC-55
  66. JVC-Nivico 9408LS/LF
  67. Aiwa TPR-220H
  68. Panasonic RS-450
  69. JVC-Nivico CD-1655U
  70. Akai CS-33D
  71. Panasonic RQ-448S
  72. JVC-Nivico ED-261U/1261F
  73. Aiwa TPR-220EE
  74. Sony CF-420L
  75. Teac A-140
  76. Sony TC-337
  77. Sony TC-1 29
  78. Sanyo M-2480K
  79. Akai GXC-41D
  80. Philips N-2509
  81. 'Pioneer CT-4141A
  82. Aiwa AD-1200
  83. Panasonic RS-451
  84. Technics RS-610
  85. Pioneer CT-51 51
  86. Technics RS-263US
  87. Akai GXC-38D
  88. Sony TC-1 24CS
  89. JVC-Nivico 1667U
  90. Sanyo RD-4300
  91. Sony TC-1 33CS
  92. Sony TC-1 34SD
  93. Sony TC-1 31SD
  94. Sony TC-1 26CS
  95. Technics RS-271US
  96. JVC-Nivico 1668U
  97. Sony TC-1 65
  98. Kenwood KX-700
  99. Teac A-160.
  100. Pioneer CT-F6161
  101. Sansui SC-636
  102. Akai GXC-46D
  103. Kenwood KX-710
  104. Technics RS-277
  105. Pioneer CT-F7171
  106. Aiwa AD-1300
  107. Sony TC-1 52SD
  108. Aiwa TPR-930EE
  109. Toshiba PT-470
  110. Yamaha TB-700
  111. Sony CF-550A
  112. Aiwa TPR-3010H
  113. Sony TC-1 37SD
  114. JVC-Nivico MC-1820L
  115. Harman/Kardon HK-1000
  116. Aiwa AD-1500
  117. Sony TC-1 36SD
  118. Sony TC-332
  119. Teac A-360
  120. SonyTC-161SD
  121. JVC-Nivico 9470LS
  122. Sony TC-203SD
  123. Technics RS-276US
  124. Akai GXC-75D
  125. Technics RS-296US
  126. Akai GX-510D.
  127. Teac A-450
  128. Sony TC-1 53SD
  129. Advent 201
  130. Nakamichi 500
  131. Technics RS-676
  132. Sanyo RD-4600
  133. Tandberg TCD-310
  134. Sony TC-331
  135. Technics RS-279US
  136. Sony TC-209SD
  137. JVC-Nivico CD-1669U
  138. Sony TC-1 77SD
  139. Nakamichi 700
  140. Nakamichi 1000
  141. General Electric M-8616
  142. Herton 461
  143. General Electric TA-600
  144. Akai CR-81D
  145. Pioneer HR99
  146. Dokorder MC-60
  147. Weltron 2001
  148. Panasonic RS-806US
  149. JVC-Nivico 1260U
  150. JVC-Nivico ED-1240U
  151. Dokorder MC-70A
  152. Skandia IC SK-308
  153. Akai GXR-82D
  154. Panasonic RE-8420
  155. Panasonic RS-818
  156. Panasonic RS-855US.
  157. Akai CR-80DSS
  158. Technics RS-858DUS
  159. Aiwa TPR-4001H


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