The restoration of the vintage soviet TV set Yunost R603 (Юность Р603) from 1981 continues. I replace some dried out electrolytic capacitors in the horizontal oscillator and leaking ones in the power supply. I diagnose the linear voltage regulator with discrete germanium transistors and I explain how does it work. I explore and test the internals of the high voltage multiplier with selenium diodes. I explain the horizontal output and high voltage generation circuitry. I test some problematic paper capacitors in it and I discover the most likely cause of the shorted horizontal output transistor. Episode 1:
Episode 3:
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