I also run 2000 volts on the plates of the modulator, 4x150a's, and usualy 1500 volts on the pair of 813's in the final.
It seems to like it that way, i have done experiments as both supplies have variacs, things always seem to modulate better, and sound better with more mod voltage. Brett N2DTS ----- Original Message ----- From: "Geoff/W5OMR" <[EMAIL PROTECTED]> To: "Discussion of AM Radio in the Amateur Service" <[email protected]> Sent: Monday, November 12, 2007 11:09 AM Subject: Re: [AMRadio] Re:Reactor Wanted > W9LBB wrote: > > It's interesting tho... I don't think I've ever heard of a rig that runs a > > much higher B+ on the modulator plates than it runs on the FINAL. > > > > John/WA5BXO runs 2400v on his (4) 813 (push-pull parallel) modulator, > and ~1200 on a pair of 250TH's. > > > He used to have a rig that ran a pair of 304TL's, that ran 1300 or 1400v > on the final, and the same modulator (same voltage). > > The voltage on the modulator is what's needed to properly modulate the > amount of carrier produced, without flat-topping or causing distortion. > > -- > Driving your AM Rig without a scope, > is like driving your car at night, without headlights. (K4KYV) > > -- > 73 = Best Regards, > -Geoff/W5OMR > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > 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:[email protected] > To unsubscribe, send an email to [EMAIL PROTECTED] with > the word unsubscribe in the message body. ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list 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:[email protected] To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
