Hum, 4-1000A G.G. amplifier, 3000 VDC plate, 700 MA Plate I, 500 MA Grid I, with 125 Watts out of DX-100 running apprx 2100 W input and dissipating 670 watts plate = approximately 1430 watts output!
While the carrier level into 50 ohm dummy load is 1400 watts measured and a really NICE orange glow! This is with a 200 cfm blower, air system socket and chimney. Jim WB2FCN ----- Original Message ----- From: "Jim candela" <[EMAIL PROTECTED]> To: "Discussion of AM Radio" <[email protected]> Sent: Wednesday, January 12, 2005 7:07 PM Subject: RE: [AMRadio] AM Amps > > Darrell, > > That amp you built with the 4-1000 was a "killer" in more ways than one! > Time for a confession.. > > Regards, > Jim > WD5JKO > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Darrell, WA5VGO > Sent: Tuesday, January 11, 2005 6:04 PM > To: Discussion of AM Radio > Subject: Re: [AMRadio] AM Amps > > > At 04:21 PM 1/11/2005 -0500, you wrote: > > >In a message dated 1/11/05 12:14:43 PM, [EMAIL PROTECTED] writes: > > > > > > > well all I can say is it works.. works well as a matter of fact, and has > > > been for 6 years :) > > > I typically run between 350 and 400 watts of carrier every day. It looks > > > great on the scope. Modulation envelope is perfect. 100% modulation. In > 6 > > > years Ive only lost one tube, and I accidently broke that one. > > > > > > > > > >I have to agree with Gary. You're seeing 1600 watts PEP and 400W of > carrier > >OUT with a pair of GG 813s??? Does not compute! Just curious, are you > >talking about 400W INPUT power to the linear under carrier only condx > >maybe? If > >so, this would work out to about 133W carrier OUT and each 813 dissipating > >about 133W which would make more sense. > > > >Dennis D. W7QHO > >Glendale, CA > > > I'm with Dennis and Gary. To run a linear amplifier at 375 watts of carrier > and 100% modulation, you will need around 800 watts of plate dissipation. > For a short time a number of years ago, I tried running an AF-68 and a > 4-1000A linear amplifier. I could never get more than around 450 watts of > carrier and stay linear............I didn't need a heater in the shack > either. > > 73, > Darrell, WA5VGO > > > > 73, > Darrell, WA5VGO > > > > > ______________________________________________________________ > AMRadio mailing list > Home: http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:[email protected] > > -- > No virus found in this incoming message. > Checked by AVG Anti-Virus. > Version: 7.0.300 / Virus Database: 265.6.10 - Release Date: 1/10/2005 > > -- > No virus found in this outgoing message. > Checked by AVG Anti-Virus. > Version: 7.0.300 / Virus Database: 265.6.11 - Release Date: 1/12/2005 > > ______________________________________________________________ > AMRadio mailing list > Home: http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:[email protected] > >
