Audio Database

The

CORAL A-7
33,800 yen(around the 1965 time)

Description
@
The solid-state Integrated Amplifier using a transistor.

The SEPP-OTL circuit system of 2SB425 has taken [ circuit composition ] the lead.

Posister (thermal element) and the double protection circuit of immediate judgment nature direct current-FUSE have protected the power transistor.

Functions, such as tone control, a scratch filter, a run bull filter, and loudness control, are carried.


Rating of a mode
Form Stereo Integrated Amplifier
Effective output 50W(25W+25W)
Music power 60W(30W+30W)
Frequency response 20Hz-20kHz}1dB
Input sensitivity Player:3.8mV
Tuner, Tape, Aux: 120mV
Tape Monitor:330mV
Equalizer Player:RIAA curve
Tone control Bass: +13dB--15dB (50Hz)
Treble: +15dB--20dB (20kHz)
Loudness control 100Hz:+7dB
10kHz:+3dB
An attached circuit Tape recorder DIN standard connector
Run bull filter
Scratch filter
Loudness control
Tape monitor circuit
Power transistor guard
The semiconductor used Transistor: 22 pieces
Diode: Six pieces
Posister: Four pieces
Power supply voltage AC100V/117V, 50Hz/60Hz
Power consumption 70W (at the time of the maximum except take-off)
Dimensions Width 345x height 136x depth of 260mm
Weight 6.8kg