Transfromers position

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hego

Member
Joined 2008
Transformers position

I have a rebel hum in either Ouput transformers.This hum is yet without the valves in sockets.I think is a direct coupled at the OT from the mains power transformer field.

What´s the right positions and mínimal distance between the transfromes?

I use now a 90 degrees and "X" mount for OT, and "Z" for power trafo.

Thank´s
 
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H

hego

Member
Joined 2008
The distance between the OT´s and main power trafo is only 10 mm.If add only 2 mm more (total 12mm ) this hum level is very... very low.

I think the solution is add more distance, minimal about 20 or 25 mm.

I used also copper shield around the coils of trafos without success.

Cheers
 
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