strader61
I'm the German craftsman
I've done a little bit of testing and could use some help please.
I tested the Darlington STK-0050's to start with and attached a photo with my readings. also tested the main filter leads.
The main filter capacitor leads read +40 on one side and -40 on the other side as they should. I checked the three larger transistors that have the "U" shaped heat sinks and have been known to get hot and Q25 was 27.14 volts, Q19 was +50.25 volts, and Q20 was negative or - 51.00 volts.
when I remove the right STK-0050 when looking at the bottom I get sound in one channel and protection circuit works as it should, but if I add the STK-0050 back in unit stays in protection mode and have no sound from either channel. The STK-0050's that I am using are new. Thanks for any help with this.
I tested the Darlington STK-0050's to start with and attached a photo with my readings. also tested the main filter leads.
The main filter capacitor leads read +40 on one side and -40 on the other side as they should. I checked the three larger transistors that have the "U" shaped heat sinks and have been known to get hot and Q25 was 27.14 volts, Q19 was +50.25 volts, and Q20 was negative or - 51.00 volts.
when I remove the right STK-0050 when looking at the bottom I get sound in one channel and protection circuit works as it should, but if I add the STK-0050 back in unit stays in protection mode and have no sound from either channel. The STK-0050's that I am using are new. Thanks for any help with this.