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40-216 SW antenna compensating condenser
rjm
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Posts: 70
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City: Newbern State, Province, Country: Tennessee
#1

11-15-2022, 05:12 PM
My compensating condenser on the SW antenna broke. Would anyone know the value. Listed in the schematics as part # 31-6326. None of my parts books I have show it. I have tried what I have a 40-240pf and a 110-580pf. Can't dial in to a strong signal from my signal generator. Cuts it or makes it weak. If I disconnect the internal antenna and run a wire, it picks up the generator strong at 18mc, adjustment frequency.
any help would be appreciated.

Thanks,
        Richard
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Radioroslyn
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Posts: 7,285
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City: Roslyn Pa
#2

11-15-2022, 05:31 PM
At 18mc you are not going to need much capacitance. I would start w/20mmf and go down if necessary.

GL
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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rjm
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Posts: 70
Threads: 17
Joined: Jan 2006
City: Newbern State, Province, Country: Tennessee
#3

11-15-2022, 06:07 PM
cool thanks. I can get a 2-70pf. Should give me the range.
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