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Setchell Carlson Model 427 fluctuating volume
RodB
Phorum Expert
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Posts: 986
Threads: 40
Joined: Feb 2015
City: Roseville, MN
#4

04-27-2023, 03:13 PM
Check the screen voltage of the first three tubes. It should follow the fluctuation of the 12SK7 plate. If it does then check the voltage at the right side of R4 to see if that is low or fluctuates. Strange symptoms.
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RE: Setchell Carlson Model 427 fluctuating volume - by RodB - 04-27-2023, 03:13 PM
462ron - by 462ron - 04-29-2023, 07:56 AM



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  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)