01-07-2015, 10:21 AM
1. Check continuity of the output (secondary) of the transformer 46 (audio diving the grids of 42 tubes).
2. Check the primary of the audio output transformer.
3. Have you checked all your tubes? Check the 42s for being good.
4. Check their plate voltages.
2. Check the primary of the audio output transformer.
3. Have you checked all your tubes? Check the 42s for being good.
4. Check their plate voltages.
