Re: Vidor CN429 'Lady Margaret' fell silent
Vidor's switch is an odd affair, different from any other one I've seen. Its contact is a piece of copper that's spring-loaded. If that contact has any corrosion, there won't be any voltage.
Can you tap the tubes while the set is on and see if you hear a "pwong-pwong" sound from the speaker? If so, you have good audio and something's went wrong in the radio section. If no "pwong-pwong", and the batteries are fresh and delivering the proper voltages, then I agree--output transformer's open.
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Just playing with high voltage....
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