|
The green T-103 I'm working on, as I said, was sold in Italy. It differs from the US market models in the power supply (see schematics). It's got an autotransformer. This increases the weight, but has a great bonus: it gets rid of the 20W resistor with an 85V tap for the heaters !
Additionally, it provides 220V for the B+, so that a voltage doubler circuit is not necessary, and the 2 selenium units are wired together.
I'm slowly conditioning the capacitors with a Variac now ...
|