Amplituner marca Hitachi model SR-503L din anii '70.
Made in japan. Carcasa de lemn, cu vu-metru. Totul functional. Ofer proba in oras. Sunet superb.
Tuning range: FM, MW, LW
Power output: 20 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.3%
Damping factor: 25
Input sensitivity: 2.5mV (MM), 450mV (DIN), 200mV (line)
Signal to noise ratio: 70dB (MM), 90dB (line)
Output: 200mV (line), 40mV (DIN)
Speaker load impedance: 4Ω (minimum)
Semiconductors: 1 x FET, 4 x IC, 14 x transistors, 18 x diodes
Dimensions: 435 x 134 x 359mm
Weight: 7.6kg
Year: 1977