Probably RF getting back into the supply. My old ex Compaq server switching supply would shutdown completely with 6m as soon as I hit tx. Ferrites didn't help so it's just the emergency spare.It also makes some funny buzzing sound at times running my 85 watt 2 meter.
If you still have this power supply i can photograph mine and then you can reconnect your wires.Hello 43 Echo 695
So I was just reading your post. I happen to have such a power supply (22amp) but most of the wires have been pulled off their connection lugs and now it will be difficult to determine where which wire goes where.