Today’s success: one direction of a Hayward/Kopski bi-directional termination insensitive amplifier. I used KSP10 VHF transistors and it’s delivering more gain than expected (30dB!) rather than 20dB from 2n3904. Careful construction, so no oscillation. I’ll just put it into a pad rather than re-biasing. But it worked first try, again. Lucky weekend ☘️ I’m calling this mixed Manhattan/Ugly style “ugly man” haha
#HamRadio #AmateurRadio
Karl Matthias 🇺🇦
@relistan@mstdn.social
Infrastructure, architecture, #Golang, #Ruby, #ElixirLang. Co-author of "Docker: Up and Running" http://goo.gl/u3T6Lr from O’Reilly Media. American, naturalized Irish, Oregonian, cyclist, analog photographer, electronics hobbyist, and ham radio operator (EI9ITB / KB8SWH). Dublin, Ireland 🇮🇪
mstdn.social
Karl Matthias 🇺🇦
@relistan@mstdn.social
Infrastructure, architecture, #Golang, #Ruby, #ElixirLang. Co-author of "Docker: Up and Running" http://goo.gl/u3T6Lr from O’Reilly Media. American, naturalized Irish, Oregonian, cyclist, analog photographer, electronics hobbyist, and ham radio operator (EI9ITB / KB8SWH). Dublin, Ireland 🇮🇪
mstdn.social
@relistan@mstdn.social
·
Feb 01, 2026
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