Blog
On the blog, you'll find stories of electronics repairs, casual schematics, and reflections on the challenges of circuit design
AI is corporations' new idol. It's time to break it's statue.
Mythology Tech giants are trying to convince us that AI is the new god. They don’t mention that their language model...
PG19 Radio Frequency 50MHz LC Generator - Repair & Teardown
Recently I had the opportunity to repair an early 70s Polish radio frequency generator - PG19. It utilizes a tradit...
XT60 Shield For Enerblock LiFePo4 100Ah Battery
I designed this shield for LiFePo4 battery owned by SP9KJM radioamateur club. It features 6 XT60 connectors because...
Programming Cable For Yaesu VX-7R
I received a VX-7R radiotelephone from Maciej SQ9NJL for checking its functionality and unlocking the 4m band. After ...
Building ILER-40 v3
I can’t recall any serious problems while recreating shortwave receivers, but I have never managed to add a transceiv...
2m J Pole From Measurement Tape - new SOTA/POTA must-have?
I am developing an antenna system for a stratospheric balloon for the Silesian Aerospace Technology scientific club. ...
Leader LBO-524 40MHz Oscilloscope Teardown & Cleaning
Many electronics engineers prefer digital oscilloscopes over analog ones. Considering that a digital oscilloscope all...
13.8V 15A Linear Power Supply From An Old UPS
Since 2021 I belong to DIPOL scientific circle. We deal with all techniques of electronic communication, and an impor...