31-12-2020, 06:32 PM
Hi Rob, as was said, it may well be an output transformer were about 5% of the primary (down from HT) is taken off and used in a form of bridge circuit to reduce hum (Langford Smith has a good explanation)
This is the bit that often burns out and the set can still be used, albeit with a higher hum level or larger caps fitted.
It can still be used in a conventional amp and the tap ignored.
A picture and a sketch might help closer identification
Ed
This is the bit that often burns out and the set can still be used, albeit with a higher hum level or larger caps fitted.
It can still be used in a conventional amp and the tap ignored.
A picture and a sketch might help closer identification
Ed
