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Philco 19B Code 126: rewinding an open antenna coil, pesky volume drops
tym
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Posts: 36
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Joined: Dec 2023
City: Greater Boston State, Province, Country: MA
#28

02-12-2024, 05:53 PM
I think I'm zeroing in on the (very) intermittent volume fluctuation being a heat-related tube issue.

Replacing the IF 39/44 tube reduced how often the volume fluctuates and the degree of volume change. The volume change is now pretty small, so I could live with it as-is.

The 75's grid cap and tube pins have all been resoldered, and swapping it with another tested 75 makes no difference. Same with swapping the 42 output tube.

I had not yet reflowed the solder on the grid cap of my replacement 39/44 tube, so I did that today. I'll see if that improves things.
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RE: Philco 19B Code 126: rewinding an open antenna coil, pesky volume drops - by tym - 02-12-2024, 05:53 PM



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  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration