Testing MRF151's In Circuit.

[Richard Solomon]

Is it possible to test the modules while mounted on the board ?

I just want a DC check to see which ones are bad.

BTW, the amp I picked up yesterday was Tom's, NQ7R's. He has
passed the torch on to me.

Tnx, Dick, W1KSZ

[Warren Stone]

The FETs can be tested while mounted, but the four solder tabs will have to be lifted from the circuit boards.

Once the leads are isolated, you can use a multimeter to confirm the FETs at DC.  A procedure is shown on this link.

http://members.rennlist.org/warren/fettesting.pdf