#29: HBR/40, QRP SSB transceiver for 40 meters

Описание: Article (in Russian): https://eax.me/2023/2023-09-18-hbr-40...
Schematic: https://eax.me/files/2023/10/hbr-40-s...
Firmware: https://eax.me/files/2023/10/hbr-40-f...