No, I use the qrp labs 50 watt amp on 40 meters only. ?I haven¡¯t made a contact in 10 meters yet (though I was copying lots of stations) but I have on 20 meters. I built it for use with 9 volts and into a poorly matched antenna ?(1.8 swr) ?it putts out 2.2 watts on 20meters. (About the same as the low-band QDX I¡¯ve been using for months.)
73 de ai4ot?
alphaindia4oscartango