Help Troubleshooting Millenia Media HV-3B PLEASE

[sonolink]

This is a very good example of why you shouldn't try and out think the original designer, and why most opamp changes are a waste of time.

Sorry I don't understand what you mean...

 

[scott2000]

Good job!
Way to stay at it...

 

[sonolink]

Good job!
Way to stay at it...

That's my guess really... funny thing is I purchased all 6 opamps at the same place (4x OPA604 + 2xOPA2604), and the 2604 are working fine.....

Cheers
Sono