...or, you could sell the four 813's to someone who likes to make lamps and
use the proceeds to buy a pair of 3-500Z's. That would be my choice.
-WB2WIK/6
"Each success only buys an admission ticket to a more difficult problem." --
Henry Kissinger
> -----Original Message-----
> From: 2 [SMTP:2@vc.net]
> Sent: Wednesday, September 19, 2001 1:55 PM
> To: Randall DuCharme; @AMPS
> Subject: Re: [AMPS] Distortion, amp design, and 813s (newbie alert!!)
>
>
> >
> >Greetings,
> >
> >The latest IMD thread has been very educational and
> >inspiring. Thank you all!
> >
> // There was also a tad of technoblather.
>
> >My questions are probably old ones but being new to
> >the sport..... :-)
> >
> >Anyway I'm about to embark on my first linear project.
> > Having never built an RF I decided I'd like to try a
> >4x813 setup. 1: because the 813 almost requires a
> >hammer to take it out of service, and 2: there's just
> >something really sexy about the tube to me. ( poor
> >reason, I know ) I also have several of them and
> >almost zero dollars invested in them. I've been
> >looking through some of Mr Orr's earlier books and
> >there are several examples of class B linears for SSB
> >use
>
> // Class B G-G is hardly linear, but Class AB2 G-G is.
>
> > but I'm wondering how these would fare by todays
> >standards?
>
> // From what I've measured on the air, G-G 813s are at least as clean
> as the best transceivers.
>
> >How 'bad' would they be? Even in a
> >push-pull circuit? With NFB ???
> >
> // Push-pull is a 5-gallon bucket of worms.
>
> >I intend to build a grid-driven setup with bias and
> >screen supplies
>
> // If you go with grid driven, better wear disguises to ham conventions
> and swap meets. Name/Call badges are not a good idea either.
> Grid-driven 813s are reliable splatter generators.
>
> >... ...
> cheers, Randall
>
> - R. L. Measures, 805.386.3734, AG6K, www.vcnet.com/measures.
> end
>
>
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