"Bret Ludwig" writes:

For a single secondary transformer of considerable size it's often
cheaper to have the local transformer winder to do one as a one-off. I
have had transformers in the 1500 VA class wound for me cheaper than
Peter Dahl listed them as shelf stock. Winding your own is also
possible.

Many surplus sources exist if you scrounge around as well.

For many years, I worked at John Fluke Mfg. which had a transformer
prototype model shop. For the 20 years I worked there, I never store
bought a transformer, instead using the prototype shop after hours.

At Novatech, I can wind small devices, but not the big iron stuff.

Steve.
--
Steven D. Swift, , http://www.novatech-instr.com
NOVATECH INSTRUMENTS, INC. P.O. Box 55997
206.301.8986, fax 206.363.4367 Seattle, Washington 98155 USA