I have the following Sola ferroresonant CV transformers for sale. The filament transformers are extremely useful for circuits sensitive to voltage variation.
Sola NOS constant voltage transformer, 385V each side of CT at 110ma, plus 5V at 2A and 6.3VCT at 3 amps. Some scratches on nice gray case. Hookup diagram on case. $12 plus $8 US Priority flat rate box mailing. Sola NOS constant voltage transformer, 118V at 254ma and 330V at ??ma. With 3UF 330VAC capacitor for 330V hookup. Hookup diagram on case. $6 plus $8 US Priority flat rate box mailing. Sola Model 21248 NOS constant voltage filament transformers (2 to sell). These have a 5V winding and a 6.3V winding. Neither one is center tapped. Not sure of current rating but these things are big and heavy-about 1.5 times the size of the one above with the 2 filament windings-with no HV winding! So I'd say that these are about 5 amps at 5V and another 5 amps at 6.3V. $10 each. Brand new in nice gray cases. 73, Don Merz, N3RHT -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of W5OMR/Geoff Sent: Wednesday, May 10, 2006 9:49 AM To: Discussion of AM Radio Subject: Re: [AMRadio] Ferroresonant transformer revisited John E. Coleman (ARS WA5BXO) wrote: >Now that is interesting Geoff. I didn't realize that Solo made filament >XFMRs. And because directly heated cathode type transmitting tubes are very >sensitive to filament voltage then it makes since to have a transformer that >will deliver the proper voltage regardless of input. > >John, WA5BXO > > oh, yeah, you betcha! I've seen a few Sola filament transformers at different hamfests. "heavy duty" comes to mind, as the best way to describe 'em. -Geoff ______________________________________________________________ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected] AMfone Website: http://www.amfone.net AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb The information contained in this e-mail may be confidential and is intended solely for the use of the named addressee. Access, copying or re-use of the e-mail or any information contained therein by any other person is not authorized. If you are not the intended recipient please notify us immediately by returning the e-mail to the originator.(17b)
