Infrequent Sound [sex.tex] technology: Yamaha R-300 Natural Sound Stereo Receiver, 1980-1984, made in Japan

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Country: Japan
Manufacturer / Brand: Yamaha Co.; Hamamatsu
alternative name Nippon Gakki
Year: 1981/1982

Category: Broadcast Receiver - or past WW2 Tuner
Semiconductors (the count is only for transistors) Semiconductors present.
Main principle Superheterodyne (common)
Wave bands Broadcast (BC) and FM or UHF.
Details
Power type and voltage Alternating Current supply (AC) / 220 Volt
Loudspeaker - This model requires external speaker(s).
Power out 72 W (unknown quality)
Model: R-300 - Yamaha Co.; Hamamatsu
Material Wooden case
Shape Book-shelf unit.
Dimensions (WHD) 435 x 122 x 337 mm / 17.1 x 4.8 x 13.3 inch
Notes

Tuning range: FM, MW
Power output: 30 watts per channel into 8Ω (stereo)
Frequency response: 10Hz to 100kHz
Total harmonic distortion: 0.005%
Damping factor: 40
Input sensitivity: 2.5mV (MM), 120mV (DIN), 120mV (line)
Signal to noise ratio: 85dB (MM), 100dB (line)
Output: 120mV (line), 28mV (DIN)
Semiconductors: 10 x IC, 1 x FET, 24 x transistors, 22 x diodes, 4 x LED