Hitachi SMR-5240 Quadraphonic 4-Channel Receiver

Description

Doesn't work for parts the 4ch Light is only thing that turns on
The stereo receiver corresponding to 4ch developed making full use of the semiconductor technology and the circuitry technology.
The four RM-SQ matrix circuit is built in.
It is also possible to have adopted the OCL circuitry as a power amplifier part, and to double an output by the BTL circuitry at the time of 2ch.
FET is used for FM tuner part.
The pair mic mixing circuitry is carried.
Form
2ch / 4ch receiver

Effective output
10Wx4 (8 ohms, 4ch drives, 1kHz)
Dynamic power (IHF)
65W (8ohms)
THD
1% (at the time of an effective output)
Cross modulation distortion
0.5% (at the time of 1 / 2 effective output)
Output bandwidth
20Hz - 30kHz
Frequency characteristic
20Hz-20kHz±1dB
Dumping factor
25 (1kHz, 8ohms)

Input sensitivity
Phono: 3mV (2ch), 200mV (4ch)
Aux, Tape: 200mV
Mic:3.5mV
S/N
Phono:60dB

Practical speed (IHF)
2 microvolts
Capture ratio
1.2dB
Selectivity
46dB
S/N
64dB
Synthesis>
The semiconductor used
Transistor: 57 pieces
FET: One piece
IC: Three pieces
Diode: 24 pieces
Supply voltage
AC100V, 50Hz/60Hz
Power dissipation
75W (Electrical Appliance and Material Control Law)
Dimensions
Width 490x height 136x depth of 390mm
Weight
9.6kg