Hi Paul: just checked the data sheets for 807s. at 600v and 56 watts out Z is 10,000 ohm, in ab2 at 80 watts out Z falls to 6900 ohms. any thing even close to those should work, problem is being able to find one. good luck with the 807s in rf service, they can be very tough to tame use a shield around them up to just a little above the bottom of the plate. Good luck Bernie W8RPW ----- Original Message ----- From: "Paul Baldock" <pbald...@verizon.net> To: <amradio@mailman.qth.net> Sent: Saturday, January 24, 2009 7:35 PM Subject: [AMRadio] Mod Transformer
> Does anybody have a good reference as to how to calculate modulation > transformer requirements? > > Thanks > > - Paul > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:AMRadio@mailman.qth.net > To unsubscribe, send an email to amradio-requ...@mailman.qth.net with > the word unsubscribe in the message body. > ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body.
