I haven't had to totally rewind any IF coils, because they seem to either be cold solder at the terminals or broken near the beginning winding , so I just remove a winding or 2.

Maybe I have just been lucky?

You seem to have answered your own question as to whether the litz wire makes a difference. In your case where you don't need optimal IF gain, it does not matter.

As a practical matter, I don't think anyone else would choose these radios for DX contesting either!

So I guess it comes down to what is practical and useful vs technically optimal?

On Friday, June 13, 2025 at 10:07:35 AM EDT, David Stinson <[email protected]> wrote:

Dear people smarter than me:
Good Morning. I'm working on an article about
failed RF and IF coils wound with Litz wire, and seek those
with experience subbing regular small insulated copper.

I understand the theory to justify using Litz Wire
in IF/RF coils of a receiver. Subbing regular copper
for Litz should make a notable difference in circuit Q
and amplifier bandwidth. I have done this in
receiver IF and RF Amplifier Circuits.

I'm sure if I set up the service monitor "magic box"
I could chart a measurable effect, but in practical terms-
there's little difference listening to the local 3890 KC
gang or the mil nets.
After all- I'm not seeking to make DXCC using an NC-44;
it would fulfil my needs just fine.

Have you had any such cases?
What do you think about the practical differences
between a Litz-wound IF and a copper-wound IF
when a correct part is not available?
Have also installed a BCB receiver IF (6BE6 or BA6 IIRC)
into a 6SK7 circuit and it worked OK.

TNX OM ES 73 DE Dave AB5S

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