88. AM Radio Oscillator and Mixer

Описание к видео 88. AM Radio Oscillator and Mixer

This is the final section of the Elenco AM radio (FM to follow). Testing and tuning if the oscillator and antenna section are completed along with a overall system test.
There is a mistake in the capacitance claculation - it should be
1/((1/C1)+(1/C2)...)
I did find the oscillation problem - it was the audio amp itself. I replaced it with the transistor amp, and voila, no oscillation.

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