One more big LPF finished
Loses before LPF 😀 DeepVNA calibrated once on 1-30MHz band. 160m: 80m: 40m: 20m: 15m: 10m: 6m:
Метка: amplifiers
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
Assembling new big LPF
And cooler for flatpack he. https://www.youtube.com/shorts/pD0XqEJSAwA
Building amplifier — lost count :)
Started building my own new amplifier controller (STM32F405RGT6 backend + esp32 s3 frontend) with blackjack and hookers.
Amplifier case — day 3
Amplifier case — day 2
Finally got the amplifier case
Wolf RU4PN QRP Unit some tests
First transmit using new unit.