Sunday, April 19, 2020

Blapunkt auto radio Acapulco RDM168, Florida RD168, Biarritz RDM169, San Remo RD168 Schematic and PWB

Blaupunkt Acapulco RDM168 Auto radio schematic

Keyboard schematic and printed circuit board
Power amplifier schematic
Main board schematic and PWB

Friday, April 10, 2020

SR3220 CCE stero tuner amplifier circuit diagram – using 2N6107-2N6292 pair Audio output power transistors

Power amplifier circuit diagram [schematic]-using Bipolar [BJT] transistors 2N6107-2N6292 in push-pull circuit – used with some Philips tuner amplifiers too. 20 Watts RMS per channel audio output. Use full range 6 Ohms speakers with this set to achieve maximum fidelity.

Power output and Power supply section


Tuner and input selector
Full schematic

Thursday, April 9, 2020

Transformerless TV 4471 – 17 inch B/W TV circuit diagram – Hybrid type – uses valves and transistors Vintage

Vintage – Transformer-less TV5971 B/W schematic: Hybrid type- used vacuum tubes and transistors

Used valves: EF183, PCL84, PCL82, PCL85, ECC82, PL36, PY88, 23E6K3T-A59-11W B/W picture tube.

Used vacuum tubes: EF183, PCL84, PCL82, PCL84, PCL85, PL36, ECC82, PY88, A44 120W 17C6K3N picture tube