Does anyone have the part number and type of the volume control for the QCX mini? Mine is intermittent. Do you have one I can buy from you? Thanks Doug K6JEY

#qcx20mini

Your choice a QCX+ 20m or 30m QCX-Mini and a home built N7DCC auto tuner for the Radios. Packaged in the same size case as the QCX+ 150.00+ 20.00 Shipping USA. Contact me at n2aie@... and I'll ge

#10W_PA #qcx20mini

For intro please see my other post here: https://groups.io/g/QRPLabs/topic/88250303?p=%2C%2C%2C20%2C0%2C0%2C0%3A%3ACreated%2C%2C%2320m%2C20%2C2%2C0%2C88250303%2Cct%3D1&ct=1 I'm looking into my radio n

#20m #qcxmini #qcx20mini #troubleshoot #troubleshooting

And...I can follow directions ;) What a fun build. It's a Rev 3 board (although the plastic bag said Rev 2 ;) ) Quick notes: -the build manual is exceptionally good, of course. Thanks Hans and other c

#qcx20mini #qcxmini

Thanks Ron I managed to lay my hands on 2 HROs recently so the first Christmas job will be to get those recapped and realigned. I've run out of magnet wire so just ordered a selection on bobbins from

#20m #40m #qcx20mini

I think a lot of the mystery for me is at the component-by-component level. Conceptually, I think I understand what each stage does. However, when it comes to figuring out why cap C10 is 470pF but ano

#troubleshoot #qcx20mini #function

No problem, and will do.

#troubleshoot #qcx20mini

I see. Thank you for educating me. I'm relieved. Thanks Fumi

#qcx20mini #qcxmini #20m

Thank you Bruce and thank you Ken. I just ordered a TCXO. Looking forward to drift free transmitting. Mitch NK3H

#20m #qcx20mini #wspr

!

#problem #qcx20mini

Yes i supplying 12vdc to the radio. I'll try to check the solder again. will watch the video and try to follow the troubleshoot it. De 9M2KLH

#qcx20mini #qcxmini #alignment

Hi Dave. I had the same problem - it turned out to be a faulty op amp IC7. Checking voltages around ICs 6 and7 could be useful for you, although I'd check T1 carefully first.. Allison's advice is of c

#qcx20mini

Hi L6 feeds +5v to pin 7 mcu ic but has c47 and c3 as decoupling to ground. If L6 is oc check for shorts/ on vcc rail to micro that rail had to be drawing excess current for some reason Ie short or ov

#qcx20mini

That was it; replacing C29 fixed it. Thanks again for the suggestions. The radio worked long enough for me to listen, transmit and get picked up by RBN. Then I plugged in the 50W amp and developed a l

#40m #problem #qcx20mini

I'm glad you figured it out Dan! Dans rule!

#qcx20mini

I've just tweaked my QCX20 mini referring to Hans' "tune up" video. Just spreading L3 and a tiny bit on L4 took me from 3W at 12v to 4.4W into a QCX dummy load. With no No turns removed, outputting 5.

#qcx20mini