Tech Notes from the Field

It just would not be a holiday if something unexpected, unexplained, and just plain nuts happened. Today it was our Harris HTHD+. Just decided it was not going to work and stopped putting out power. When I arrived on site, the only red LED on was the IPA. I inspected everything and flipped on the dummy load. Powered up and all was fine. Chalk another one up for the head-scratcher’s list.

I do know I am about due for a tube replacement, so I suspect a little arc action or some sort of commercial power surge, though no overloads were indicated. BTW, the box did not turn back on via remote control right after the event. Only after sitting idle for about 20 minutes did it seem to work again.