stevem Messages: 4728 Registered: June 2004 Location: NY
Senior Member
27 volts D.C. On the output should be making for a dam loud hum / buzz coming out of the speaker, in fact that much voltage can take out the speaker(s) depending on what they are!
Try this simple swap that should take all of 5 minutes.
Swap the 2 big + and - power supply rail filter cans and see if your D.C. Voltage on the output jack changes over to a negittive 27 volts.