23-06-2022, 06:28 PM
Sorry for the delay in replying.
The grid coupler has been changed as have quite a few resistors and caps and the board cleaned as best I can
I thought this had cured the pos voltage on the grid but after 10 mins the voltage was up to + 225mv measured with the DMM, no idea why I had the lower reading of +70mv last time I tried.
Looking like the board is bad.
Danndad
The grid coupler has been changed as have quite a few resistors and caps and the board cleaned as best I can
I thought this had cured the pos voltage on the grid but after 10 mins the voltage was up to + 225mv measured with the DMM, no idea why I had the lower reading of +70mv last time I tried.
Looking like the board is bad.
Danndad
