A-10's were put into service in 1977.Could be. That's just my recollection. I was pretty sure it was an A10, but it all happened in 10 seconds long ago! For sure, my radio WAS working fine and never worked again after that.
I don't think the A10's ever made it to support us in Vietnam, but I do remember seeing them frequently on the east coast after I got back. I guess I thought maybe someone here had worked on them in another life and might know if they were ever experimentally outfitted with some sort of electromagnetic pulse generator?