Transistor with copper spacer
Previous transistor did great fireshow and took a bit textolite with it.
Метка: amplifiers
Received goods from AliExpress and a little work with them
Cool packages from aliexpress.
New PA controller code and PCB
It’s still under heavy development, but because, maybe, I’ll unable to spend enough time on that in near future I decided to share the code.
Big amplifier first run — video (RU)
Big amplifier progress
Continue working on the new PA controller
Added web control: https://www.youtube.com/shorts/ccnnh0VyIVU
One more big LPF finished
Loses before LPF 😀 DeepVNA calibrated once on 1-30MHz band. 160m: 80m: 40m: 20m: 15m: 10m: 6m:
MicroPA 50+ replacing transistor — update — video (RU)
MicroPA 50+ replacing transistor — video (RU)
IRF530 to RD70HUF2 experiment. Video (russian).
Little tuned bias on wolf RU4PN qrp unit
50db ATT, 14.1Mhz ~30dbc, 36dbc PEP