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philco 90 tube sheild
Radioroslyn
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Posts: 7,286
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
#2

03-03-2018, 10:07 AM
Hi Benny,
I assume you've serviced this chassis. Would have a look at the tube's heaters to be sure they are lit when the volume is low.  Check the grounds at the block caps to be sure the bolts are snug. Connections at the tuning cap and grid caps on tube (resolder at tube).
Check the rf and osc coils for green dots, if found rewind the primary (small winding).

Happy Hunting!
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry
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Messages In This Thread
philco 90 tube sheild - by mg34.42 - 03-03-2018, 02:28 AM
RE: philco 90 tube sheild - by Radioroslyn - 03-03-2018, 10:07 AM
RE: philco 90 tube sheild - by mg34.42 - 03-03-2018, 11:41 AM
RE: philco 90 tube sheild - by morzh - 03-03-2018, 12:07 PM
RE: philco 90 tube sheild - by Radioroslyn - 03-03-2018, 12:23 PM
RE: philco 90 tube sheild - by mg34.42 - 03-03-2018, 11:25 PM



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