Soviet radio restoration, explaining a superhet, ratio detector, AFC, IF, image frequency @DiodeGoneWild
Soviet radio restoration, explaining a superhet, ratio detector, AFC, IF, image frequency @DiodeGoneWild
Uploaded July 2022 | Updated September 2026, 1 week ago
Fixing and restoring a soviet radio - Sokol 308 from about 1980, with MW, SW and OIRT FM bands. Explaining how a superheterodyne receiver (superhet) works, local oscillator, mixer, IF frequency, 10.7 MHz filters, ratio detector FM demodulator, AFC, AM detector, AVC / AGC, mirror image frequency reception. Diagnosing the failure, testing electrolytic capacitors, germanium transistors...

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Soviet radio restoration, explaining a superhet, ratio detector, AFC, IF, image frequency

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