I would prefer a wire bail that folds down, rather than folding feet. I find that folding feet (e.g. like on the Drake R8) tend to be flimsy. Roger G3YTN --- *************************** Roger Hill

Hi Serge There are no folding feet. If someone has a suggestion, that could become popular. As supplied, it will, as documented, have four self-adhesive feet. 73 Hans G0UPL http://qrp-labs.com

It is probably a bad idea to seperate the PA transistors (IRF510) too far from the circuit board. Since they are trying to work together in a push-pull arrangement to drive a few amps of RF current

More from a troubleshooting aid point-of-view as components are being replaced when doing a repair. -- 73, Bernie, VE3FWF

On Wed, May 13, 2020 at 06:46 AM, <john.rogers@...> wrote: I use a second 3S in series with the radio battery to power the 50W ampCorrection: I use a 3S to power the QCX and 2S in series to power the

Yes, Hans, I also see potential for your stalagmites not meeting my stalactites :-D On a different note, will the enclosure have a pair of folding feet under the front?I want to avoid getting a stiff

Hi, short test for IC10 Check again whether the marking on the circuit shows the display (ok, already done 100 times) Use a protective resistor Rp approx. 220 Ohm (against unwanted short circuit), do

Giuseppe, I do not understand. What does it touch? IC1 is on the other side of the board. It's pins are seen at the left side, away from the cover. This cover helps to screen and maybe more

Hi Serge Yes, I see... The wide thickness of your assembly is due to the circuit board and the battery holders all adding up as thickness. Well there are some potential ways you could make it fit.

Sorry Giuseppe...I cannot help as I have never built one, but I am sure there are others here who can help. Roger G3YTN --- *************************** Roger Hill ***************************

Hello everyone, my name is Giuseppe iu8eun. I would like to ask you for help regarding the external screen as shown in the OCXO photo for my U3S multiband. I can't put it because it hits the IC1

I have done investigation on the accuracy of the GPS control using the Synth module in both the PRO-ROCK and the VFO Sig-gen and I also confirm a frequency difference between an off air standard and

I have done investigation on the accuracy of the GPS control using the Synth module in both the PRO-ROCK and the VFO Sig-gen and I also confirm a frequency difference between an off air standard and

Hi All, Hans has published the dimension available and I am looking for designs to incorporate the 50 watt amp inside the case. Can you separate the IRF510 and heatsink from the board with

Here is the Wondom BCPB2 3S 18650 MPPT BMS I am talking about.Leaving out the DC connector, it is still 31.5 mm high with the electrolytic capacitors being the next highest components. However, if

On Fri, May 29, 2020 at 02:15 AM, ajparent1/KB1GMX wrote: Its still about the magic of hearing a voice from across the street or some ocean.Beautifully sums it up Allison. I'm still giddy that this

Hi, I have just raised the supply to 13.8V, and linearity, and improved no end, as I step down 1dB at a time, the amp output, follows with in 0.94dB! Using a R & S NRP8S Sig Gen -1dB

Hi Ted Yes indeed! I was so lucky that Akihabara was a 2-station train ride from my office. I could literally be there, door to door including the walk to/from the stations at either end, in 15

Fabulous insight Jim My first visit was only back in the '80s but I’ve been there nearly every year since, sometimes more. I worked in music and more specifically flew one of those huge mixing

Bernie, That looks interesting. I think your post has gone onto the wrong topic? A current limiter won't stop popping the finals when there is no antenna connected, or fix a broken QCX. I'm guessing