Almost 30 years ago now, before I was 99.9999% a QRPer, I had an Alpha 76CA (3 tubes). It had a giant swamping pad on the input (I still have it - the swamping pad, that is). Just take it out and like magic, you could drive the amp with QRP. My intention was never to exceed legal limit, just to be able to use the amp when driven with a QRP rig. I don't remember how much out I could get with QRP in, but it was nowhere near 1500 watts.
I have no clue what they have on the inside of the KPA500, but if there is a swamping pad, you can probably take it out. What is Elecraft's motto? Hands-on radio? :-) When I used to use a Ten Tec Titan Amp, it required 36 watts of drive for 1500 watts out on 20m. That was probably 25 years ago. Finally, if you want to fly under the radar, there are certain high quality amplifier manufacturers overseas (closer to W6 than W2...hint hint) who will custom make you an amp for low power drive. Check the FT817 Yahoo group archives. de Doug KR2Q had my fill of QRO ages ago ______________________________________________________________ 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
