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Another problem I'm having is that after playing about 3-5 minutes, the volume drops off significantly. All tube tubes tested fine so I checked all the voltages.
Most are fine but the grid bias on the 1st and 2nd audio are 10 times what they should be. 0.4 => 5 and 0.2 => 5.
The RF tubes is a bit off as well, but not nearly as much.
I do have a few original dogbones left in the set because they test fine. I'm thinking they may drift off value as the set warms up so I'll try replacing them next.
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(This post was last modified: 01-02-2013, 07:31 PM by Bob Andersen.)
Messages In This Thread
RE: Philco 15DX restoration - by Bob Andersen - 01-02-2013, 07:29 PM
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