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Antique Radio Technical Forum
Philco 90 Has Same Volume At All Volume Settings

Posted by Lou on 04/12/2012 13:26

Check the volume control especially if it is a wirewound type. Over the years these wear and portions of them become open.

Lou

:The plate voltage does seem low. Check resistors from power supply that feed this plate. The volume control you can check with an ohm meter. It could have an open where it goes to ground.
:


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Philco 90 Has Same Volume At All Volume Settings 
Johnny 04/12/2012 12:18 
Warren 04/12/2012 13:19 
Lou 04/12/2012 13:26 
Johnny 04/12/2012 14:12 
Warren 04/12/2012 15:31 
Johnny 04/12/2012 16:07 
Warren 04/12/2012 17:49 
Johnny 04/12/2012 18:09 
Warren 04/12/2012 18:55 
Johnny 04/12/2012 21:36 
Johnny 04/13/2012 15:32 
Warren 04/13/2012 17:25 
Johnny 04/13/2012 20:14 
Mitch 04/14/2012 16:54 
Edd 04/14/2012 17:28 

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