02-08-2021, 06:07 PM
No - it remains very weak. Yes, the trimmers have a limited effect on it, but it is not what it should be.
Additionally, I tried locating a defective part/stage by using the signal tracing method: Using 460KC and the axial lead of a .01 cap as a probe, I cannot pass a signal from the grid of the 78 tube to the speaker. I can hear the click when the probe touches it, but no tone. When the probe touches the grid of the 75 tube, I get LOUD buzzing.
This set really has me stymied. I can pass various frequencies at the antenna post, rotate the tuning cap, and hear the tones in the speaker - but I cannot pass a decent 460KC.
Additionally, I tried locating a defective part/stage by using the signal tracing method: Using 460KC and the axial lead of a .01 cap as a probe, I cannot pass a signal from the grid of the 78 tube to the speaker. I can hear the click when the probe touches it, but no tone. When the probe touches the grid of the 75 tube, I get LOUD buzzing.
This set really has me stymied. I can pass various frequencies at the antenna post, rotate the tuning cap, and hear the tones in the speaker - but I cannot pass a decent 460KC.
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