Great video - Thanks. I received my QCX mini yesterday. It is a version 2. Per the website: "Step 3.42, the addition of an 10uF electrolytic or tantalum capacitor in parallel with C38, is neither required nor recommended on a Rev 2 PCB; the existing C38 capacitor is properly rated and is perfectly adequate. Therefore ignore step 3.42."
I just saw your posting of this video, very nice! I have two of the original QCX transceivers with the Ba-Ma-Tech cases; for 20 and 40m and they are great radios; fun to build kits. I have not ordered the Mini yet, but I am being tempted, hi hi. I would probably miss the "straight" key switch that was included on the original QCX, though. QRP-Labs is sure doing a great job designing these kits and getting QRP CW on the air. I will be looking forward to the next QCX Challenge! In the meantime, I am off to see the next part of your video. Thanks again for doing it. 73, de Karl, KO8S
Thanks a lot for your feedback Karl! Yes, I also have both of the predecessors and they are great, but so far I love the QCX Mini best! I love this cool little radio and will use it with my Palm Radio Pico Paddle...
I’m bummed. I have the Revision 1 board. I took off the Voltage regulator and need to order a new 78M05 replacement chip. Fun fun !! I should just order a new board. Is that possible ? I just wound T1. What a chore lol.
Got to the alignment and it does not work. Can tune C1 but not the peaking Trimmers. R27,24,17. One of the Op Amps is bad. Gotta figure out which one. It oscillates as soon as I add power when I turn it on.
Before powering up, there is a magic smoke bug in the QCX-Mini regarding C38, check out Hans message at Groups.io for a QCX-mini critical modification advisory. groups.io/g/QRPLabs/topic/78967188 73 de Lex PH2LB
Hello Juan, no problem, we all have many questions, especially at the beginning. There is no real need for an oscilloscope, but it would come in handy to be able to e.g. measure the output power of the QCX. All basic alignment can be done with the "onboard" measurement features without any problems.
Hannes, have you been faster than Hans? He did it in 38 minutes ;-) Anyway Well done! and the hint for the 10 uF cap came in time. So I have to wait for the next batch and it will be a 30m unit. Have fun.
Thanks for your comment Hajo - you know, I was always quick with the soldering iron, Hi! I am glad you will reward yourself with a QCXMini also, they are great fun to build and operate!
Hi, thanks a lot! to answer your questions: (1)Yes, the SMD parts are already installed. (2) Hmmm...maybe someone didn't like the little Rock'n'Roll song I wrote ;-)
Great video - Thanks. I received my QCX mini yesterday. It is a version 2. Per the website:
"Step 3.42, the addition of an 10uF electrolytic or tantalum capacitor in parallel with C38, is neither required nor recommended on a Rev 2 PCB; the existing C38 capacitor is properly rated and is perfectly adequate. Therefore ignore step 3.42."
Nice video! Your T1 looks very neat - I am impressed. I look forward to your next video.
Thank you - I appreciated your kind comment!
Looks good! Be sure to carry out the 10uf cap modification for the power input so that it doesn't let out the magic smoke.
Thanks for this hint! Yes, I got the information earlier today. Good thing that there is an easy workaround!
@@Bluesmother Indeed, just a 10uf cap. Those are easy to come by, even in salvaged electronics.
I just saw your posting of this video, very nice! I have two of the original QCX transceivers with the Ba-Ma-Tech cases; for 20 and 40m and they are great radios; fun to build kits. I have not ordered the Mini yet, but I am being tempted, hi hi. I would probably miss the "straight" key switch that was included on the original QCX, though. QRP-Labs is sure doing a great job designing these kits and getting QRP CW on the air. I will be looking forward to the next QCX Challenge! In the meantime, I am off to see the next part of your video. Thanks again for doing it. 73, de Karl, KO8S
Thanks a lot for your feedback Karl! Yes, I also have both of the predecessors and they are great, but so far I love the QCX Mini best!
I love this cool little radio and will use it with my Palm Radio Pico Paddle...
Thanks, enjoyed it
What a great video! You really assembled this fast! Looking forward to the testing. Danke.
73 de Arnie W8DU
Thanks Arnie! I hope to be able to edit my video next weekend! 73
I’m bummed. I have the Revision 1 board. I took off the Voltage regulator and need to order a new 78M05 replacement chip. Fun fun !!
I should just order a new board. Is that possible ?
I just wound T1. What a chore lol.
Got to the alignment and it does not work. Can tune C1 but not the peaking Trimmers. R27,24,17. One of the Op Amps is bad. Gotta figure out which one.
It oscillates as soon as I add power when I turn it on.
Nice work! I’m playing with my QCX+ 40m while waiting for my QCX-Mini 40m to arrive. 😉👍🏻 72 DE AA9SN
Thanks a lot Scott! I hope that your QCX Mini is up and running by now!
Nice video, hope to do as well when I put mine together! 73 de W2DAB
Before powering up, there is a magic smoke bug in the QCX-Mini regarding C38,
check out Hans message at Groups.io for a QCX-mini critical modification advisory.
groups.io/g/QRPLabs/topic/78967188
73 de Lex PH2LB
Thanks. Looking forward to next video - did it work?
Hi Steve, it did - the new video is online: ruclips.net/video/0GElK3qaxog/видео.html
did you include the spacers?
Yes, the spacers have been installed - this is indispensable to achieve the correct height levels!
Excuse my rookie question. Do you need an oscilloscope to set it up?
Hello Juan, no problem, we all have many questions, especially at the beginning. There is no real need for an oscilloscope, but it would come in handy to be able to e.g. measure the output power of the QCX. All basic alignment can be done with the "onboard" measurement features without any problems.
How did the smoke test and alignment go?
Thanks for asking - the smoke test has been done and the video should be online in the next couple of days!
Nicely done. 73
Hannes, have you been faster than Hans? He did it in 38 minutes ;-) Anyway Well done! and the hint for the 10 uF cap came in time. So I have to wait for the next batch and it will be a 30m unit. Have fun.
Thanks for your comment Hajo - you know, I was always quick with the soldering iron, Hi!
I am glad you will reward yourself with a QCXMini also, they are great fun to build and operate!
Good video. Two questions however.
(1) So all SMD parts already installed?
(2) What idiot down-voted you?
That’s actually an upvote from Australia
Hi, thanks a lot! to answer your questions:
(1)Yes, the SMD parts are already installed.
(2) Hmmm...maybe someone didn't like the little Rock'n'Roll song I wrote ;-)
@@pmrich7035 I just loved this answer, thanks ! :-)
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