[R-390] Audio output transformer

[ToddRoberts2001 at aol.com]

In a message dated 8/28/2007 9:30:23 AM Eastern Standard Time, 
graham at delphe.co.uk writes:
The measured diameter of the primary wire including the varnish was
0.0035 inches. I chose to use 0.071mm wire to allow for the varnish.
Had I had any, I would have used 0.08 or even 0.09mm since the
resistance per meter was higher than the original.

The diameter of the secondary wires was 0.0065" including the varnish.
I used 0.125mm .

It is now all reassembled, with minimal blemishing of the paintwork.
It is working very well although my primary resistance is a little
higher than it should be.

Graham
G8OAD
 
 
Hi Graham,
Congratulations on your repair job to the R-390A output transformer! Did you 
take any pictures of the disassembly/reassembly?
73 Todd WD4NGG



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