One
of the biggest advances in systems Hi-Fi was the appearance of magnetic tape cassette.
It was first introduced by Philips in 1963 as Compact Cassette.
The unit uses a magnetic tape cassette mounted in a plastic case for
storing sound signals. To record is passed by a tape recording head amplifier.
The signals recorded on the tape can be "read" later by one or more
playback heads.
The cassette unit requires a motor to wind the belt system, and also has
devices for improving sound quality and to avoid distortion. An essential
device is the sound level meter can be a VU (volume unit)
Each
cassette unit contains an oscillator bias (bias) which produces a high
frequency signal on the tape inaudible. This signal is combined with the sound
before it reaches the recording head. Its purpose is to help reduce the
distortion in the recording system. It can also be used to clear signals before
recording.
1)Pioneer stereo cassette deck CT-970. 3 heads system.1980.
 |
| Cross-section of head. |
2) Pioneer stereo cassette deck CT-9R. 3 heads system.1981-83.
3) Pioneer stereo deck CT-A7,3 heads system. 1983-85.
1) Marantz stereo deck SD-60.3 heads system 1989.
2) Marantz stereo deck SD-930 with auto azimuth control.1983.
1) Philips stereo deck N5756,3 heads system.1980.
2) Philips stereo deck N5846 3 heads system.1981.
1) Sony stereo cassette deck TC-K75.1979.3 heads system.
 |
| Head view. |
 |
| Mechanism drawing. |
2) Sony stereo cassette deck TC-K80.1978.
 |
| Head view. |
3) Sony stereo cassette deck 3 heads system TC-K555 1981-83.
1) Aiwa stereo cassette deck AD-FF8. 1981.3 heads system.
 |
| Head view. |
2) Aiwa stereo cassette deck AD-F80. 3 heads system. 1978.
 |
| Head view. |
3) Aiwa stereo cassette deck FX-70.1987-89.
1) Akai stereo cassette deck GX-75, 3 heads system.1989-91.
1) Technics stereo cassette deck RS-M63, 3 heads system.1979-81.
 |
| Internal compartment view. |
1) Teac stereo cassette deck V-1RX. 3 heads system. 1981.
 |
| Head view. |
2) Teac stereo cassette deck V-700.3 heads system, 1984-86.
1) Stereo cassette deck LO-D Hitachi D-900.1977. 3 heads system.
 |
| Head view. |
1) Sansui stereo cassette deck SC-77.1979.
 |
| Mechanism details. |
 |
| Cut and detail of the heads of recording-reproduction and erased. |
2)Sansui stereo cassette deck D-970.3 heads system. 1982.
 |
| Mechanism drawing. |
1) Denon stereo cassette deck DR-F3.3 heads system. 1980.
 |
| Mechanism drawing |
1) Stereo cassette deck Nakamichi LX-5. 1981.
 |
| Mechanism drawing. |
2) Stereo cassette deck Nakamichi CR-70.3 heads system.1985.
 |
| Internal mechanism. |
1) Stereo cassette deck Aurex-Toshiba PC-X55AD. ADRES (Automatic Dynamic Range Expansion System) 1980.
 |
| Mechanism drawing. |
 |
| Heads of recording-reproduction and erased. |
2) Stereo cassette deck Aurex Toshiba PC-X88AD. ADRES (Automatic Dynamic Range Expansion System)1980.
 |
| Drawing Internal mechanism. |
1) Stereo cassette deck Optonica Sharp RT-9.1979.
 |
Drawing cross-section of head
|
1) Stereo cassette deck Onkyo TA-680.3 heads system.1978.
 |
| Detail drawing of the head |
2)Stereo cassette deck Onkyo TA-2066, 3 heads system.1983-84.
1) Stereo cassette deck Onkyo TA-680.3 heads system.1978.
0 comentarios:
Post a Comment