2014年10月12日 · I've gotten an itch to work some farther away stations that are past the distance that my little 1.5watts on 7Mhz can reach so I've begun building a...

2021年10月18日 · "PA structure and output power: Three TO-92 packaged bs170 tubes are used, and the transmission power is 3-5w (one bs170 and irf530 pad are reserved for DIY upgrade)." …