I'm working on a Dressler RF amp 13mhz which has a driver in a TO220 case with only markings is PM09R or could be PMO9R . Only other thing on it is a impresion in the plastic mold MALAY. This unit has two amps.
The working PM09R has 25vdc on the output , 2.4dc on input and third leg ground.
I assuming a FET
MALAY may mean Malaysia
Oh yes my favorite dreaded work from the factory proprietary.
Thanks
Doug
The working PM09R has 25vdc on the output , 2.4dc on input and third leg ground.
I assuming a FET
MALAY may mean Malaysia
Oh yes my favorite dreaded work from the factory proprietary.
Thanks
Doug