Technics ST-3
¥ 19,600 (released in October 1982)
Commentary
An FM/AM tuner with a body of 315 mm width and 43.6 mm panel height incorporating Technics tuner technology.
The front end has a high sensitivity design that employs a 4-pole junction FET in the RF stage.
In addition, a ceramic filter is used in the IF stage to increase selectivity, and a high SN ratio is realized by wide-band quadrature detection.
The MPX for the MPX demodulation circuit, and demodulation is performed by double balanced and switching circuit to realize excellent stereo separation.
Equipped with an AFC (Automatic Frequency Control) circuit for more stable reception.
Equipped with a large flywheel for smooth tuning.
The guide with red LED is used for easy channel selection.
The AM tuner section has a complete IC structure and is designed to be resistant to spurious interference by combining it with a newly developed low-impedance ferrite antenna.
A direct connector is used for connection.
Model Rating
| Type | FM/AM Tuner |
| FM Tuner Section | |
| Receiving frequency | 76 MHz to 90 MHz |
| Practical Sensitivity (75 Ω) | 10.3dBf/0.9 μ V (IHF' 58) |
| SN50dB Sensitivity (75 Ω) | Mono : 18.5dBf/2.3 μ V (IHF' 58) Stereo : 38.9dBf/24 μ V (IHF' 58) |
| Distortion factor | mono:0.15% stereo:0.3% |
| Signal-to-noise ratio | mono:78dB |
| Frequency characteristic | 20 Hz ~ 15 kHz + 0.5 -1.5 dB |
| Effective selectivity | 65 dB (± 400 kHz) |
| Capture ratio | 1.0dB |
| Image interference ratio | 45dB(83MHz) |
| IF interference ratio | 70dB(83MHz) |
| Spurious interference ratio | 70dB(83MHz) |
| AM suppression ratio | 50dB |
| Stereo separation | 40dB(1kHz) |
| Leak Carrier (19 khz) | -35dB |
| <AM Tuner Section> | |
| Receiving frequency | 525 kHz to 1605 kHz |
| Practical sensitivity (S/N = 20 dB) | 300 μ V/m, 20 μ V |
| Selectivity | 27dB |
| Image interference ratio | 40dB |
| <General> | |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 5W |
| External dimensions | Width 315x Height 50x Depth 250 mm |
| Weight | 1.4kg |