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#16
11-10-2023, 06:42 PM
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I get +254 at L38, which Philco calls "Hor Osc B+" on page 14 of their manual. That pin is next to the Hor Out tube 6DQ6A. This voltage is consistent whether or not I have picture. The 6DQ6A tube tests good.
On about 20% of startups I see +370 on L22 and hear the oscillator and get picture briefly before that voltage drops back down to +269. 
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Threaded Mode