After quite a bit of modification&dickering with an open-frame dc relay that I had hoped would work as TR relay, it appears it needs to be inside a totally shielded enclosure. I'm getting feedback into amp thru the relay that is causing it to generate RF without drive (oscillate). I need a relay that can be included inside the amplifier enclosure so probably will investigate some HD SPDT pcb relays and separate the input relay from the output relay. Amp is running well with just input and output coax lines.
So I checked into the Elecraft SSB Net with the barefoot K3/10 today (14w). I did use the new coax lines that will serve the amp and the QRO tuner (Drake MN2000). Drake power meter is generous when compared with my Bird43 (with 500H element). New stations block diagram: http://www.kl7uw.com/2012_Station.jpg I will post more info on the amplifier here: http://www.kl7uw.com/HF-300PA.htm Got to run the snowblower so my wife can get thru the 2-foot snow drift to the Sunday paper! 73, Ed - KL7UW, WD2XSH/45 ====================================== BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 50-1.1kw?, 144-1.4kw, 432-QRT, 1296-?, 3400-? DUBUS Magazine USA Rep [email protected] "Kits made by KL7UW" http://www.kl7uw.com/kits.htm ====================================== ______________________________________________________________ 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
