Rick: I know you would like to keep it original but even with today's transformers at 120 volts, primary, the secondary still remains the same for filament voltage. Another thing I don't understand at this point, why monitor filament primary voltage? I would think to monitor the true filament voltage is more critical. Regards, Gary...WZ1M ----- Original Message ----- From: "Rick Brashear" <[EMAIL PROTECTED]> To: "Discussion of AM Radio in the Amateur Service" <amradio@mailman.qth.net> Sent: Monday, February 19, 2007 10:38 AM Subject: Re: [AMRadio] Transformers Revised
> Hi Gary, > > As usual, my description was lacking. The beast has five filament > transformers with all primaries wired in parallel. So, to adjust the > filament voltage you simply set the rheostat to 100 vac as indicated on > the filament voltage meter. So, GE has created a sure fire way (or so > they thought) of selling only their transformers for replacement. > Proprietary to the max! If I can find a milti tap transformer with a > 100 vac tap and 5 vac @ 2.5 amp secondary, as Geoff suggested, I'll try > to fit it in. If not, you are likely to get some business. I think the > plate tranny is going to be equally hard to find. It's 900-0-900 > secondary and 115 vac primary. It can't be potted due to the mounting > and there is very little room in the area for anything much bigger than > the original. I'm going to send you the part numbers of both along with > a better description and see if you can do your thing on them in case I > strike out on a replacement. > > Thanks, > Rick/K5IZ > > > gkb wrote: > > >Kinda scratching my head here, if the primary voltage is passing thru a > >rheostat, why the need for 100 volt primary trannys? > >Regards, > >Gary...WZ1M > > > > > > > > > > ______________________________________________________________ > AMRadio mailing list > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Partner Website: http://www.amfone.net > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:AMRadio@mailman.qth.net > To unsubscribe, send an email to [EMAIL PROTECTED] with > the word unsubscribe in the message body. > > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.5.441 / Virus Database: 268.18.2/692 - Release Date: 2/18/2007 4:35 PM > > ______________________________________________________________ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.