MicroPA 50+ replacing transistor — video (RU)
IRF530 to RD70HUF2 experiment. Video (russian).
Метка: amplifiers
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.
SDRs work
Antminer version almost ready. Need to cut circle for amplifier fan, do some cosmetics, screw on MOSFET board for LPF, screw on