SONY STR-202
¥ 34,800 (released in 1972)
Commentary
This is an FM/AM stereo receiver developed by SONY as an introductory stereo.
It is equipped with many functions such as a balance control knob, a loudness switch that allows you to hear with a rich sense of presence even when the volume is reduced, a mode switch that allows you to switch between stereo and mono, a microphone input, and a monitor switch.
The tuner uses an FET for the FM front end and a solid state filter for the IF stage.
It is equipped with a "Music plus You" function that allows you to listen to your songs and performances through the speaker with the sound of a record or tape superimposed on it using a microphone or FM radio microphone.
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Model Rating
| Type | FM stereo / FM-AM receiver |
| Circuit system | Superheterodyne tuner Quasi complimentary service SEPPP OTL system |
| FM Tuner Section | |
| Receiving frequency | 76 MHz to 90 MHz |
| Antenna | 300 Ω balanced external antenna terminal With Simple Antenna |
| Practical sensitivity | 2.2 μ V (S/N : 30 dB) |
| Distortion Factor (IHF) | mono:0.5% stereo:1.0% |
| Stereo separation factor | 35 dB or More (400 Hz) |
| <AM Tuner Section> | |
| Receiving frequency | 530 kHz to 1605 kHz |
| Antenna | Built-in bar antenna With External Antenna Terminal |
| Practical sensitivity | Built-in antenna : 48dB/m External antenna : 20 μ V |
| Distortion factor | 0.8% |
| Amplifier Unit | |
| Rated output | 16W (EIAJ distortion factor 5%) |
| Music output | 30W (5% EIAJ distortion factor) |
| Frequency characteristic | 30 Hz to 50 Hz |
| Input Sensitivity / Impedance | Record : 3.5mV/47k Ω Tape : 400mV/100k Ω Recording / Playback (Input part) : 400mV/100k Ω MIC : 2.5mV/10k Ω |
| Output Level / Impedance | Recording : 250mv/10k Ω Recording / Playback (Output) : 30mV/80k Ω Headphone : Load impedance 8 Ω or more Speaker : Load impedance 8 Ω ~ 16 Ω |
| Tone control | Bass : 100 Hz, ± 10 dB Treble : 10 kHz, ± 10 dB |
| Loudness control (volume attenuation 30 dB) |
100Hz:+7dB 10kHz:+4dB |
| <General> | |
| Semiconductor used | Transistor : 30 FET:1 Diode : 14 |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power outlet | Total 250W (one interlocking system, one non-interlocking system) |
| Power consumption | 45W |
| External dimensions | Width 421x Height 118x Depth 312 mm |
| Weight | 5.6kg |
| Attachment | Feeder antenna Speaker connection code RK-83 (1 set) |
| Sold Separately | Electret condenser microphone ECM-18N (¥ 3,800) Wireless microphone CRT-16 (¥ 4,700) |