I suppose 813's are still available, but I don't see them listed very often. I do, however, see 811's a lot. Wouldn't a couple of those work for that kind of power range? Maybe it would take 3, but they seem to be readily available, and pretty inexpensive.
By the way, at the swap area at Dayton this year I saw an old Heath HA-14 (hadn't seen one of those for a while!). I think it uses 811's or 572B's--a pair--laying sideways. The guy was pretty proud of it though, as he wanted $900 for it! I guess they are rare enough that he was serious. Dave W7AQK ----- Original Message ----- From: "Ron D'Eau Claire" <[email protected]> To: <[email protected]> Sent: Tuesday, May 19, 2009 7:52 AM Subject: Re: [Elecraft] KPA-200 > Matt, W8ESE, wrote: > > a external 200-400 watt amp is a fairly trivial design, if > you want > one order some parts and get building. You could do this > with a couple > 813's for pretty low cost, or solid state for a bit more > money. > > --------------------------------------- > > 813s! I'm with you Matt! > > I have to constantly remind myself that Ham radio has > changed. > > For some of us, the first and most interesting part of Ham > radio is the > challenge of building and modifying gear. > > For others, the most interesting part of Ham radio is > snagging new DX or > hitting a bigger contest score. Many of these Hams are > looking for "plug 'n > play" solutions. They have little or no interest in > building. > > Of course most of us are a little bit of both, but the > swing is definitely > toward the "plug 'n play" group here on the Elecraft > reflector. > > We're all Hams, but becoming more disparate in our > interests as times > change. I sometimes feel like I'm bouncing back and forth > across a warp in > space-time, reading here about people drooling over a > $13,000 legal-limit > amplifier or a better feeling knob, then finding in my > in-box other e-mails > about Hams who are still cobbling their receivers and > transmitters together > from scrapped 1960's TV sets and building variable > condensers out of > discarded food cans. > > Ron AC7AC > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: > http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
