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Hi Glenn, Hans has been strangely quiet on this. I was quite disappointed when v3.12a was released with no mention of this. I still have two now aging projects that have stalled because of this

All the wire needed is provided in the kit. If for some reason you need more, you could just use the same as what came in the kit. On the other hand, as mentioned in several posts, some are using a

The only real question is whether the necessary number of turns will fit if you use the larger wire. Won't be a problem if you're building for 20 meters or higher. Might be if you're doing a 40 meter

Hi Luc Great! FYI the 10K resistor is not "extra" by chance. It is intentionally added so that people who wish to make the PA modification http://qrp-labs.com/qcx/qcxmods.html#pa can do so. 73

Hi Danny: R47 10K is not an error. Please see http://qrp-labs.com/qcx/qcxfaq.html#trimmer 73 Hans G0UPL http://qrp-labs.com

Boy, for someone that knows what they are doing (yeah right) I sure made some minor but silly mistakes on this thing. But thanks to the goodness of the group, am making headway. Thanks again, almost

You may want to check the value of the R47 100k pot as well - my kit has a 10k and two 20k trim pots in error. The 500ohm pot is on point.? Tip: a yellow stripe on a blue resistor = green stripe. It

A group of us are beginning our efforts to construct the QCX CW transceiver. We noted that the transformer wire size is specified (page 50) at #28 enamelled. The wire size for L1, L2, L3 and L4 is

Ok, so here is the current scoop. Found a small cold solder joint in the supply voltage chain. Not like me, used to be NASA certified back in the day. Probably in too big a hurry. Long story short,

Hope no one minds me posting this, didn't get any bites on the zed so thought I would post here to other

Hey, guys!? Relatively new ham here, this is my first CW rig - I rather ambitiously tried to build a BitX20A kit previously, but I'm still debugging it.? I jumped on the QCX as a simpler to build

Alan, that's a good article and I'll work towards that goal, thanks! --Al

Hallo Matthias, Very nice work! Can you explain how you mounted the LCD to the front panel? Frank PA7F

The display back light is powered from the 12V line, but the electronics that drive the display (IC2) and the contrast pot are both powered from the 5V line. As Al says, check

Hi Al, The edges look to me as being too rapid to be thermal drift, More like as you say RF / Noise induced on the supply rails. (Assuming the receiver audio is clean & without earth loops...) Have

A new hashtag for the topic of hashtags and this sorta stuff. To not see this topic in your emails, go to the Groups.io main page (/) and in the left menu list under the # Hashtags

Just to create a hashtag for the Progrock topics. My idea is to keep them to 3 letters where possible. To see a list of existing hashtags, in the QRPLabs page on groups.io just click on # Hashtags in

Dear QRPLer's I found that I had an extra radio left and my workshop computer to use, So I added 160M Grabber to the pile. The frequency it is setup for is 1,837,700 Hz to 1,837,900 Hz. I am

Thanks looking Could Q6 being short or going short have killed something else or a voltage needed somewhere? I could try the voltage measurements in the trouble shooting section as long as having

Thanks!