12-26-2017, 10:33 PM
One way of checking it is putting your radio next to another radio, better to another superhet, and listen to the noise/howling as they are tuned an IF delta from each other (in your case 455kHz): tune one radio say to 1500kHz and the other (the one you are fxing) to 1045kHz. You should hear some radio noise / howling in the former as you rotate the tuning of the latter.
Another is with a scope, simply look at the output waveform of the oscillator.
Another is with a scope, simply look at the output waveform of the oscillator.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
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