[ARC5] Litz Wire and Failed IF Transformers

[J Mcvey]

 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 <arc5 at ix.netcom.com> 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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