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I second Don's analysis.? I also have one and found the solder sucker to always be in the way so I removed it. I also have 2 of the hot air stations and find them invaluable.? A friend uses an

I used it today to pop off a larger IC.... works great? ? Thanks all. Eric

Hi Don. It really doesn’t matter how you wind that as long as the wire starts on one end and ends up on the other end after having made the correct number of trips through the tunnel and dropping

I need a better photo of T507 binocular toroid and how the wires are go into the holes. Since the holes are side by side, it's a bit confusing. I do start with the 1st turn going into the hole and

As luck would have it, Jeff has offered his services as well. I’m definitely interested in learning. Thanks for the suggestion. Dan

Is your cable to your paddle shielded? -- 73, Dan? NM3A

Hi William, While you have some time, and someone offers complete diagnostic help, I built 12 of them and usually replacing the finals when they blew fixed the problem if you used digikey components.

Likely RF on your coax shield. Use a common mode choke at the rig. The SWR set point is being exceeded which may be caused by the common mode current on the shield -Steve K1RF

Recently I enjoyed assembling the 50 watt power amplifier kit.? It was working perfectly until I got greedy for more power while adjusting gain with the R5 potentiometer.? ?I did not have an

The U4B has a voltage regulator on the plus and minus terminal Never exceed 5.5v on the plus and minus and it will start when powered. Take the 5.2v from your solar usb rig power and apply it to plus

Thanks Anthony! Very good report. I purchased similar unit to evaluate after you cleared? up my concern.

High SWR....or at least the QMX thinks the SWR is high. 73, Steve, N2IC

My new QMX+ is doing well on the air.? It's amazing how far a 3W signal reaches (mostly on FT8). On its initial power-up, the current consumption was normal and the Diagnostics screen showed all

Hi gang, I finished my QMX a couple of weeks ago and to my surprise, it all seemed to work well.? I did some CW and some digi with it on 17 and 20.? The output is about 2.8w on average on all

Yury, you did a really good job. It looks very nice! Roy WA0YMH [email protected]> wrote:

I have purchased one, and it works well. It also works as a WinKey with N1MM. I am not sure about some of the ones on eBay and Amazon, but the one from elekitsorparts was built and not a kit. It was

Hello friends, Let me share my way of protection QMX/QCX mini or plus display. To be honest, this is not about protection in general but adding a little bit aesthetics to these nice rigs. Well

> > Hi Hans > > The PA kit has been open on my bench with a QDX and a QMX plus other stuff > all being built simultaneously ie a mess. > > So not likely a QRP labs issue. > > Thanks for the advice

I've spent a fair amount of time trying to make the WSPR beacon work on my midband and hiband QMX. Problem is that after a few TX cycles the QMX stops transmitting with error S (SWR too high). I tried

Ah ok.? well using conventional soldering techniques you can proceed as I suggested by cleaning up /tinning the pads and holding the cap in place while touching each end in turn with the soldering