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Roelofs RA-3200/ RA-4200 amplifier
Well build stereo amplifiers made by "Comet Electro Japan" in around 1968-1970, with excellent performance.
^ The RA-4200 is approx. 1 cm wider.
Headphone jack. Din sockets.
^ Front & top RA-3200
Click here to download the user manual in PDF format
^ Interior top RA-3200.
Click here to download the schematic in PDF format
^ power transistors 2SD154 NEC
The power supply is very basic, it may be upgraded.
Back panel RA4200 ^
Interiors of TT4200 & RA4200 ^
With tuner TT-4200 ^ Prinzsound versions.
The TT-4200 tuner in Prinzsound version ^
© PE1MMK Hans Hilberink, last update: 15-09-2019.