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Model 90 1st RF question
Radioroslyn
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Posts: 7,286
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City: Roslyn Pa
#6

03-24-2011, 02:10 PM
I was going mention that that primary coil isn't very critical as it is used just to couple the rf energy to the secondary. The secondary is part of the tuned circuit, primary isn't. You could if you wanted to rewind it like the other coils with the primary on top of the secondary. Or you probably could use an ant coil from a model 20 or 70. The only thing that matters is at the tuning cap is the same value in mmfd's. Then it will tune the proper range.
Terry
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
Model 90 1st RF question - by mgutierres - 03-18-2011, 12:26 PM
RE: Model 90 1st RF question - by brett2752 - 01-28-2024, 04:27 PM
RE: Model 90 1st RF question - by Chas - 01-28-2024, 06:51 PM
Re: Model 90 1st RF question - by Ron Ramirez - 03-18-2011, 01:36 PM
Re: Model 90 1st RF question - by 7estatdef - 03-18-2011, 06:18 PM
Re: Model 90 1st RF question - by Steve Davis - 03-19-2011, 07:08 PM
Re: Model 90 1st RF question - by mgutierres - 03-23-2011, 10:01 PM
Re: Model 90 1st RF question - by 7estatdef - 03-24-2011, 02:10 PM



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