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Philco 118 B+ on IF and RF tubes?
Radioroslyn
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Posts: 7,285
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City: Roslyn Pa
#2

07-10-2017, 10:56 AM
Hi Oscar,
B+ comes off of the left side wire from the spkr's field coil. Also feeds HV to the driver transformer. The RF amp and mixer  HV passes thru the shadow meter, it has a parallel resistor so if the coil is open you'll still have HV there.
http://www.theoldradiofixerupperguy.com/...del118.pdf

Still have the Hamfest over in Bowie?? Went to it abt a hundred yrs ago. Was moved from Gaithersburg.

de N3GTE
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
(This post was last modified: 07-10-2017, 12:21 PM by Radioroslyn.)
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Messages In This Thread
Philco 118 B+ on IF and RF tubes? - by NV3G - 07-10-2017, 10:35 AM
RE: Philco 118 B+ on IF and RF tubes? - by Radioroslyn - 07-10-2017, 10:56 AM
RE: Philco 118 B+ on IF and RF tubes? - by morzh - 07-10-2017, 11:00 AM
RE: Philco 118 B+ on IF and RF tubes? - by Arran - 07-10-2017, 05:14 PM



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