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Ken, The radio is all point-to-point soldering and large sized components. The performance will suffer it built on a single pcb. I guess someone can try it. The radio needs improvements, it needs cw

What a neat little radio, thanks for sharing. Something like that, if it could be kitted out at $50 or so would make a great club project, but kiting up such a project is way beyond my skill set. I

I had presented an all analog radio at the FDIM this year (not the expected sBitx!). It is a fun radio. No, this will not have kit, you are on your own. The write up is now up on my website at

Can't go wrong with Bender -- '72 Aaron K5ATG

WOW,Never ran that much thru rg6u quad shield. have run consistantly 150 watts thru it when i owned a QRO rig. good for you. I buy mine thru either walmart or homedepot or menards depending on when

Looking to create a consistent set of nextion screens at their native resolution. ?Anybody have a set of drawings in a vector graphics form that can be resized for each platform? ?Only seen

I prefer the attached version. We meatbags had our chance... -- Tom Sevart N2UHC St. Paul, KS

You forgot the Christmas transmission. My son and I visited the site a few weeks ago. The transmitter is started several times during the year. The signals go into a very big dummy load. de 0z9ny,

Here is one of many posts from Allison that are worth reviewing, mentions the 6m 225W power amp she built using 4+4 IRF510's in push-pull. The whole thread is worth a read.

and here is where bias and standby current (class A A/B C) comes into play :-) dg9bfc sigi Am 03.08.2022 um 15:07 schrieb Max via groups.io:

"I also use the quad shield with good results up to about the 800watt level" WOW I consider 20 watts to be high power lol -- '72 Aaron K5ATG

Alan, I like the idea of the solar system but I am also rebuilding my 12-inch Dobsonian telescope with a lot of space imagery and I think my XYL may object to more space stuff in the house. Although I

I also use the quad shield with good results up to about the 800watt level... if everything is right (no sharp bends anywhere) it works just fine. Otherwise I have melted and spectacular flash arc

Got it.? I thought it might be something like that.? I have a QRPGuys Tuning Indicator that that I was using with my uBitx v6 transceiver.? It looks like the same circuit.? I'll replace the single

Jack, How much voltage were you running on the drains? - f [email protected]> wrote:

We've tested the T41 with its 510s to 40W and nothing fried. 80-40-20M all can deliver about 25W without much effort. 15M is about 20W and 10M drops to about 13W. Like I said, it is what it is...

The IRF510 can work dependably, Allison reports years of success with HF amps at 40W push-pull, surviving everything from accidental open antenna connections to dead shorts. In posts to this forum

Press on the cq decode and then, F1 for "reply to cq"

Interesting discussion. Just a few very quick thoughts I think that you have to consider the average of the input power to consider the input impedance of the power device as the instantaneous power

Farhan, The answer to that question would depend on instructions or guidelines that would minimize the occurrence of the failures.? If there is no way to use a tuner without a high risk of finals