Hi Mark,
If I understand your situation, this is the second one that I have read about on this board.? That one also had a high RF situation so high that it took out Q90.? It seems these are susceptible to high RF fields.? A good reason to purchase the metal case and then install the protections that have been identified in multiple threads.? Mostly it is diode protection on the receive input and ferrites on the lines into and out of the uBiTx.
73
Evan
AC9TU
