Made by Precision Electronics Corp. of Marshfield, MA. This is a 9000 Volt Power Supply that has been potted. Potting is the thick Silicone like substance that surrounds the item, so the competitor doesn't know how the item is made. The power supply has two mounting legs each with holes that are 8mm long by 4mm wide. The potting is 53mm long by 45mm wide by 42mm thick. There are 4 wire leads that come out of the top of the potting. Other numbers on the potting are 594190-5L and 9285. We don't have any other details. One of our customers provided the following: These were originally made for a Ratheon Video Display to give high voltage to the picture tube but a good use it to power photomultiplier tubes. It's an auto transformer with 9KV and 5KV outputs. Red low voltage input was 700 volts peak to peak pulse 9 microseconds long. Primary has 52 wire turns, 9KV has 750 turns and 5KV has 426 turns. Made in the 1970's. Thanks Robert.
