Hi, could somebody please tell me in easy novice terms how to check a 40673 mosfet
to see if it is blown ?.
I accidentally transmitted 100w through a loop preamp , and now the preamp doesnt
work. Picture attached. Also could anyone suggest the expected parts that would have likely blown from the 100 watts transmitted through RX input part of the preamp pcb.
The preamp was built by me, as I can follow a schematic , but have no real understanding of testing the probable blown parts. I could of course build a new one entirely , but would rather know how to test probable blown parts. This preamp was a performer on a loop before my stupid error in selecting wrong antenna switch, then transmitting through the preamp.
Thanks in advance for any possible help.