I could use some help in troubleshooting the amp.
But I have a confession to make. I had just finished building the 50W amp kit. I got through the adjustments okay (or so I think) but when I went to measure output I had none. Then I noticed the rookiest of all rookie mistakes. I had connected the amp coaxes to the QCX+ backwards. In other words, I transmitted into the output of the amp and had the dummy load on the input.? I guess because it was upside down on my bench, duh. Or there may be some other issue. Not sure what happens when you do what I did. I had keyed the radio a couple times for just a few seconds each and noticed no current draw on the bench supply. There was no smoke or explosions. then noticed the connection issue. Since I suspected no output I connected the QRP Labs 50 Ohm dummyload and checked the RF DCV from the connections provided for that. Nothing coming out at all. 0 Volts. The QCX seems to have survived with over 21VDC measured.?
Can someone help me save this amp?
Bryan, N0LUF
