> > Sounds like you might have a Goodfry Model 37, built in 1937. Not sure > from > > brief description. They are now collector's items and well out of the > price > > range for everyday use. > > I have serious doubts about 1N540x rectifiers being used in 1937 > equipment. They got them from future surplus of course. Great outfit, they bill my credit card 30 years ago, and the stuff arrives yesterday! -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist