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41-608 BOL
Radioroslyn
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Posts: 7,288
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Joined: Dec 2009
City: Roslyn Pa
#2

10-15-2018, 11:22 AM
Check the voltages around the 7B5 and the condition of the 7B5. The bulb is powered by rf energy developed by the local osc (7B5). Looks like 11B should adjust the brightness.
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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41-608 BOL - by davidff - 10-15-2018, 09:04 AM
RE: 41-608 BOL - by Radioroslyn - 10-15-2018, 11:22 AM



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