At first glance, this looks great! Thanks very much will be waiting to get this done over the Christmas holidays here. In 5.2 you use the word "scrap" whereas in American-eze I think it would be "scra

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I’m off this week, already got several soldering projects done, hoping an upgrade kit arrives. I volunteered to teach some high school and it’s kept me incredibly busy in my retirement. it’s also incr

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That’s great news! I’m quite game to give it a whirl. We just finished a “lab and lunch” project with our local ham radio group. There are so many who really do struggle, but doing small projects with

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Put quite a few megohms in series with a tube transmitter’s power supply and just measure the back voltage across the diode with a few micro-amp or two of reverse current

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Sounds like progress! Gordon KX4Z

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Allison, I had the same question. I think I saw somewhere back that he said there was a lower IMD at the higher current. But I didn’t see numbers? We don’t always operate our radios at room temperatur

1. I think it’s absolutely essential that the solid-state devices do not blow out in normal operation even with a poor load; likewise that spurious responses conform to FCC regulations 2. The built-in

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This is looking a lot more exciting! Gordon

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Ashhar, I usually run any radio at “half power” when doing WINLINK (pactor/VARA/ARDOP) or JS8 or FT8 etc Just like the margin of safety etc Would be nice to have cleaner IMD than just “acceptable” —so

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Add an additional stage on a daughter board? Use more negative feedback to make the game more linear across frequency / make up for it with the additional stage on a daughterboard? Gordon

Allison, thank you for those additional wise points.!!!! Good information for me to learn

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Thanks, Allison, I assume there are some bit bucket delays in finite or other impulse response filters, but if you had any hearing at all between portions (even between words ) without having to clatt

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I’m not sure I understand all of the implications, but if you had a chance of making this a full break in CW rig (via diode TR switching), many of us would give our eyeteeth for such a modern rig! Tha

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I don’t know about the oscillation involvement. But with the amplifier designed to work into a 50 home impedance, the changes in transfer of power that you are seeing as you approach a better match ar

Great! Hope this works! Many thanks to Allison. Best quote of the year, “my favorite programming language is solder!” Gordon

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Great detective work. This is the hard work of finding every little nook and cranny of a design. Thank you for your work! Gordon Gibby KX4Z

Hooray!! Thanks for sharing your good news! Gordon

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Thank you for this great work! Gordon

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Try to measure the exact frequency of the internal oscillator standard used within the radio. Perhaps it is just off a bit. My older ICOM 718's are never quite perfect. It was difficult to fix them. B

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I really only played with it twice, but there was an IF Gain (this is by memory ) that I turned up and I heard a lot of stuff I’m just been terrifically busy, the update kit just arrived and when I ge

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