On Feb 12, 2025, at 11:32?AM, pieter.oe6paf via groups.io <pieter.oe6paf@...> wrote:

?Hello Gary,Evan,Ted,

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I understand your doubts,
As for the power supply,:? this has been working for years and was once built by myself
a large 24v transformer, a thick diode bridge of 80 A, via an lm200 to 13.8v
with 4x 4N3771 parallel and a fist full of Elco`s, very basic.
When using my KWD 140S 100w SSB/CW, the power supply does not flinch
I once tested with the DMM.
So that power supply is really not bothered by a qrp set,
My knowledge of current digital equipment is somewhat comparable to that of the Stone Age!
I recently successfully built the QMX+ from QRP-labs, but what I have been doing
now, even if you beat me to death I do not know. The only thing about this thing that I still understand a little is the lpf, the rest of the
schematic is also a mystery to me, and that's how I have to look at the raduino.
Gary states the following:
To diagnose the reset, you need to capture voltage levels and reset signal. ?
Easiest with a digital scope triggering on a level dip of supply domains:?
(13.8V/12V-in, 5V, 3.3V) and the reset pin on the Nano / DTR from the CH340. ?
I understand that, but you have to have those things at home,
Of course I also ask the question "how it is possible that three diodes in the power line

solve the problem"? and I don't get any further than blaming the raduino and that
is a digital story and then this young man drops out.

Don't get me wrong people, I really appreciate your interest but I can't go into too much detail about the digital issues in this

one, it works great now and I just successfully made a qrp connection with sweden and I can finally sleep well again, hi

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Tnks agn es Best 73es pieter oe6paf

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