Technics ST-9030T
¥ 80,000 (around 1977)
Commentary
An FM stereo tuner that pursues the ultimate in receiving and reproducing functions with the main theme of faithful waveform transmission.
Equipped with an automatic IF band switching circuit that detects and operates an interfering signal below the human detection limit.
The pilot signal cancellation circuit achieves flat characteristics over a wide range from 20 Hz to 18 kHz.
It uses a servo tuning circuit that detects and automatically compensates for frequency and tuning deviations caused by temperature changes.
A frequency linear type FM exclusive 8-train varicon has been adopted to realize excellent interference rejection capability.
It has a built-in automatic high blend circuit capable of receiving with less noise.
An and muting switch muting switch system that enables narrow band muting.
Model Rating
| Type | FM stereo tuner |
| Receiving frequency | 76 MHz to 90 MHz |
| Practical Sensitivity (75 Ω) | 1.2 μ V/12.8 dBf (new IHF) |
| Distortion factor | mono:0.08%(wide) 0.15%(narrow) stereo:0.08%(wide) 0.3%(narrow) |
| Signal-to-noise ratio (IHF) | mono:80dB |
| Frequency characteristic | 20 Hz to 18 kHz + 0. 1-0. 5 dB |
| Selectivity | wide:25dB narrow:90dB |
| Capture ratio | wide:0.8dB narrow:2.0dB |
| Image interference ratio | 135dB(83MHz) |
| IF interference ratio | 135dB(83MHz) |
| Spurious interference ratio | 135dB(83MHz) |
| AM suppression ratio | 58dB |
| Stereo separation | wide:50dB(1kHz) 40dB(10kHz) narrow:40dB(1kHz) 30dB(10kHz) |
| Leak carrier | -65dB |
| Antenna terminal | 75 Ω unbalanced |
| Output voltage | Variable : 0 to 1.5 V Fixed:0.7V |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 20W |
| External dimensions | Width 450x Height 92x Depth 370 mm |
| Weight | 7.0kg |