Thread: Zenith 10S690 Volume Control Issues
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  #18  
Old 06-25-2020, 11:01 AM
old_coot88 old_coot88 is offline
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Check that there is plate voltage on the 6A8 and 6K7 (pin 3 of both tubes).

Also check screen grid voltage on both tubes (pin 4 of both).
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