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Hey Mike - I wouldn't worry too much about those readings - A lot of people have had similar numbers, see here

Probing around is always something of a risk in that one slip can make your rig toast. That said, looking at the drain waveforms at the BS170 might provide a clue. Specifically the down level which

It's crossed my mind that they might be particulary hot transistors. I don't know the current draw right off hand, nor have we keyed it long enough to notice any heating. We do have a scope.

T37 AL is 1.5 on the table it takes 1.637 not consitent with the other Ls 73 muhsin TA1MHS

Ron, Jeffrey: Thanks for the quick reply! Turns out I had the worst kind of solder joint that you can experience. It was nice and shiny, was conductive, but it was high resistance, and it slowly

Another excellent resource. https://www.diodes.com/design/support/technical-articles/understanding-semiconductor-thermal-resistance-data/ Note the comment about the majority component of heat flow

Hi Muhsin No. The turns in the manual are correct. This has come up several times before. For a given inductance the theoretical number of turns by calculation is a non-integer. But practically

That's quite a puzzle, Mike. I'm wondering if you guys won the lottery on BS170 transistor specs. Threshold voltage at the high end of spec will reduce output power and thresholds at the low end will

L8 should be 13

page 30 L6 should be number of turns 22, not 21

Thanks Ron! 73, Rob

Nope, that wasn't it.? He pulled the transformer and dissected it and it was wound right.? He rewound it with new wire and reinstalled it and the transmitter acts the same, too much power.

Nino, Thank you for your response. All buttons work correctly for me, except the left encoder when turned either direction only raises the volume. I updated the firmware again, nothing changed. I am

See if Trip Lite has a length you like, they will come with ferrites on both ends. Not cheap but very well made. My TT 539 is very sensitive to RFI and would do all kinds of bizarre stuff with the

Duh, thanks Mike. Everything looks and works as it should to the dummy load, so I guess that leaves me with RF from the antenna especially on 80m. It's going to be awhile before I get my tuner. I'll

ooops, correcting errors... area = 0.000308 sq inches = 0.199 sq mm Typo, conclusion is unchanged <jdzbrozek@...> wrote:

Definitely a good thing to check. JZ

No changes required Rob. Latest versions use the same crystals. You can go all the way up to the latest 1.09a. Good luck ... 73 ... Ron

I've been going through that transformer over and over in my head.? I didn't think it was possible to wind it wrong, but eventually I realized that after twisting the secondary lead to the primary,

Although I'm enjoying the build of the QMX (PCB1 version), and all seemed to be going well and clean, until page 29 where i failed the continuity test.? At points A1 and A2 (i used red numbers for