Paul,
When I was originally having a "look" at the circuit, it suggested a Darlington connection between the Power Transistors.
Would the BDY20 and the 2N3055 make a Darlington pair?.
I lent my latest Semiconductor reference to a fellow Ham and never got it back!.
{If you are reading this Ted, give the thing back!}
I have tommorow off and I'll get the test gear out and give it a good test.
What I want to know is, is there a bad winding on the Primary or either of the Secondary sides.
If there is, it's only fit for the rubbish heap.
I have a 7kW dummy load here, that I can use to "soak test" the transformer.
I also have a Variac that I can hook up to the Primary side, with a Fluke True RMS meter monitoring the actual voltage.
I will Megger it first though, to Earth.
Until then, I'll keep you posted.
[This message has been edited by Trumpy (edited 12-11-2005).]
