06-04-2015, 07:23 PM
Yes, agree that the set should be gone through first. Make sure to check continuity in all the interstage transformers.
Inject a modulated audio signal into the set. For a carrier use a value on the dial (~550 - 1500 KHz) Start at the gridcap of the detector tube and listen for the audio signal. Work back stage by stage and see if you still get audio. Where the audio disappears is where the problem lies.
Sounds like an open xformr vice a bad neutrodyne cap.
Inject a modulated audio signal into the set. For a carrier use a value on the dial (~550 - 1500 KHz) Start at the gridcap of the detector tube and listen for the audio signal. Work back stage by stage and see if you still get audio. Where the audio disappears is where the problem lies.
Sounds like an open xformr vice a bad neutrodyne cap.