Technics ST-8200
¥ 54,800 (released in 1975)
Commentary
FM/AM tuner equipped with a function for FM air check.
It is equipped with an FM low-noise recording and playback method that uses the low-noise sound wave receiving method of FM broadcasting as it is.
In this method, the pre-emphasis signal is recorded as it is, and by de-emphasis during playback, not only FM noise but also tape hissing can be reduced.
Conventional recording and playback is also possible by switching the switch.
With a built-in pink noise generator, accurate recording level can be set by using this signal as a guide.
The front-end section has an RF amplification stage using a 4-pole MOS FET and a single or multiple tuning circuit to realize an excellent interference rejection capability. The local oscillator circuit has a configuration with less frequency deviation by using Technics original design methods such as an oscillation coil with an aluminum core and high-frequency low-noise transistor.
A locked tuning circuit is built in to compensate for slight tuning deviation and to realize accurate reception.
The MPX stereo demodulation circuit has an IC configuration consisting of a PLL that can supply a stable switching signal and a double-differential switching circuit for improved separation.
In addition, an excellent low-pass filter with a phase delay characteristic of 5.5 μ S at 15 kHz is used to achieve faithful waveform transmission and flat frequency characteristics with less waviness.
There was a wood case sold separately.
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Model Rating
| Type | FM/AM Tuner |
| FM Tuner Section | |
| Receiving frequency | 76 MHz to 90 MHz |
| Sensitivity | 0.9 μ V (75 Ω) |
| Harmonic distortion factor (at 100% modulation) | mono:0.15% stereo:0.3% |
| SN ratio (400 Hz, 100% modulation) | 75dB |
| Frequency characteristic | 20 Hz to 15 kHz + 0.2 -0.8 dB |
| Selectivity (IHF) | 85dB |
| Capture ratio | 1.0dB |
| Image interference ratio | 83dB |
| IF interference ratio | 105dB |
| Spurious interference ratio | 95dB |
| AM suppression ratio | 55dB |
| Stereo separation | 45dB(1kHz) 35dB(10kHz) |
| Leak Carrier (19 khz) | -65dB |
| Antenna terminal | Unbalanced : 75 Ω |
| <AM Tuner Section> | |
| Receiving frequency | 525 kHz to 1605 kHz |
| Sensitivity (S/N ratio 20 dB) | 30 μ V |
| Selectivity | 25dB |
| Image interference ratio (1000 kHz) | 45dB |
| IF Disturbance Ratio (1000 kHz) | 45dB |
| <General> | |
| Output voltage | Output : 0 V ~ 0.8 V Rec Out:0.7V |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 21W |
| External dimensions | Width 450x Height 173x Depth 385 mm |
| Weight | 8.0kg |
| Attachment | Feeder antenna x1 Connection code x1 |
| Sold Separately | Wood Case SH-780 (¥ 4,000) |