Hi,
I just repaired a Mesa Boogie Single Rectifier Solo Head 50. The plate voltage on V3b which is a preamp tube in the lead channel measured 415v plate to ground. 415V was indicated on the schematic.
There is no issue with the amp but I was wondering how high the plate voltage can go on a 12AX7. This is the highest voltage I have had the occasion to observe.
Billy
I just repaired a Mesa Boogie Single Rectifier Solo Head 50. The plate voltage on V3b which is a preamp tube in the lead channel measured 415v plate to ground. 415V was indicated on the schematic.
There is no issue with the amp but I was wondering how high the plate voltage can go on a 12AX7. This is the highest voltage I have had the occasion to observe.
Billy