On Oct 9, 7:27 pm, wrote:
One of the two main fuses blows instantly as soon as power is applied
to receiver. I checked the main power supply caps 2@10,000uf and they
were ok. I also checked the bridge rectifier and it was ok. When I
remove the two power leads to the transformer it does not blow fuse.
The main windings of the transformer are 1.0 ohm. The output
transistors are each about 800 ohms at the speaker terminal (prior to
relay).

What else to check?????

Thanks!!

Disconnect all loads from the electrolytics, so you just have the
transformer, diodes and capacitors in the circuit and see what
happens. The diodes may test ok but break down under higher voltage
than your tester applies.

H. R. (Bob) Hofmann