Try this company: Nyco Transformer Company (PA) (610) 327-4106 I had them do a 3kv 1amp transformer for a university project... cost a couple hundred dollars though. Not sure they are still in business though... it was quite a few years ago. Scott F. Touchton 1550 Engineering Manager JDS Uniphase Nick Masluk cc: Sent by: pic Subject: [BUY]: 650VAC Transformer microcontrolle r discussion list 10/02/01 03:45 PM Please respond to pic microcontrolle r discussion list I'm looking for a 120VAC 60Hz to 650VAC transformer, with as high an amperage as possible up to 2.5 amps output, 150mA at the bare minimum. This will be used in a power supply for a pulsed Nd:YAG laser. I would prefer a new transformer as opposed to an old one from vacuum tube electronics. Thanks, --Nick -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body