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Repair IF transformer in 39-6
#12

What you are looking for is a coil that =1.145mh if the total capacitance in parallel with the coil (fixed and trimmer) = 100mmfd. This combination will yield a resonant frequency of 470kc. If you reduce the inductance or capacitance the resonant frequency goes up. Conversely if you add inductance or capacitance the resonant frequency goes down.

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


Messages In This Thread
Repair IF transformer in 39-6 - by Jake Blake - 02-08-2019, 01:29 PM
RE: Repair IF transformer in 39-6 - by morzh - 02-08-2019, 01:37 PM
RE: Repair IF transformer in 39-6 - by Jake Blake - 02-08-2019, 02:34 PM
RE: Repair IF transformer in 39-6 - by morzh - 02-08-2019, 10:29 PM
RE: Repair IF transformer in 39-6 - by Jake Blake - 02-08-2019, 11:12 PM
RE: Repair IF transformer in 39-6 - by Jake Blake - 03-09-2019, 09:04 AM
RE: Repair IF transformer in 39-6 - by morzh - 03-09-2019, 10:21 AM
RE: Repair IF transformer in 39-6 - by Jake Blake - 03-14-2019, 06:46 PM
RE: Repair IF transformer in 39-6 - by Jake Blake - 03-14-2019, 06:49 PM
RE: Repair IF transformer in 39-6 - by morzh - 03-14-2019, 07:23 PM
RE: Repair IF transformer in 39-6 - by Radioroslyn - 03-14-2019, 08:22 PM
RE: Repair IF transformer in 39-6 - by Jake Blake - 03-14-2019, 09:32 PM
RE: Repair IF transformer in 39-6 - by Jake Blake - 03-14-2019, 09:34 PM
RE: Repair IF transformer in 39-6 - by morzh - 03-15-2019, 07:31 AM
RE: Repair IF transformer in 39-6 - by morzh - 03-15-2019, 12:41 PM
RE: Repair IF transformer in 39-6 - by Stonewall - 03-16-2019, 03:41 PM
RE: Repair IF transformer in 39-6 - by rfeenstra - 03-16-2019, 06:23 PM
RE: Repair IF transformer in 39-6 - by Jake Blake - 03-17-2019, 12:15 PM
RE: Repair IF transformer in 39-6 - by Jake Blake - 03-17-2019, 12:30 PM
RE: Repair IF transformer in 39-6 - by Jake Blake - 03-17-2019, 10:12 PM
RE: Repair IF transformer in 39-6 - by morzh - 03-18-2019, 07:27 AM
RE: Repair IF transformer in 39-6 - by Jake Blake - 04-16-2019, 03:08 PM
RE: Repair IF transformer in 39-6 - by morzh - 04-17-2019, 12:39 PM
RE: Repair IF transformer in 39-6 - by Jake Blake - 04-18-2019, 01:06 PM
RE: Repair IF transformer in 39-6 - by morzh - 04-18-2019, 01:18 PM
RE: Repair IF transformer in 39-6 - by Jake Blake - 04-18-2019, 01:29 PM



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