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Original Message
RE: Thank you for that info.
Posted by Tre' on May 29, 2017 at 07:50:04:
Did the supply have a critical inductance input choke?
If not then that 5ar4 could have been over cooked by excessive peak currents caused by too high a value first cap.
I've cooked rectifiers tubes and power transformers that way.
What is your audio circuit this time?
It shouldn't be hard to calculate the total current draw.
Tre'