Find an old National NCL-2000. It runs a pair of grid driven 8122, 400W tetrodes. The input is an untuned 50Ω load that can be easily set for LOW drive such that 5 W in will net you over a kilowatt out. The tubes are still available and with that input circuit, is always a good match for your SS radio.
A real "sleeper" since that particular configuration would be illegal to produce these days with the ridiculous gain/drive regs foisted upon us to prevent chicken band use, which I believe for some reason, are still on the books. 73, Charlie k3ICH -----Original Message----- From: [email protected] <[email protected]> On Behalf Of wv8dh via Elecraft Sent: Tuesday, May 26, 2020 6:45 AM To: HamRadioJim <[email protected]>; [email protected] Subject: Re: [Elecraft] Alternative AMP to KX3 since Elecraft has temporarily stopped making AMPS I have a Heathkit SB-221 that I have used with my KX3. With 5 watts from the KX3 the amp will put out about 85 watts. With 15 watts drive the amp will do about 165 watts. Very reliable and fun to use when needed. But I typically use the amp with my IC 7300 during RTTY contests when needed. You will need an interface like the Ameritron ARB-704 for the keying of the amp.Good luck and 72/73,de KI8I DaveSent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone -------- Original message --------From: HamRadioJim <[email protected]> Date: 5/25/20 10:53 PM (GMT-05:00) To: [email protected] Subject: [Elecraft] Alternative AMP to KX3 since Elecraft has temporarily stopped making AMPS I have a KX3 and looking for an AMP (besides the elecraft brand) that is 100watts or more that will work flawlessly with it.I ordered the 100 amp from elecraft, but have been waiting over two monthsfor it, but they are out of stock and will be for some time. Has anyone purchased something else and has used it for a while with reallygood results? If you have not tested or used an alternative AMP for theKX3, please don't respond to the post. Just looking for those who haveactual results instead of suggestions. Greatly appreciated. Thank you.-73--Sent from: http://elecraft.365791.n2.nabble.com/______________________________________________________________Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:[email protected] list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
