Background Soviet electronics always contained some unusual solutions. Despite its poor quality I find tearing Russian devices very entertaining. That’s why I decided to show you the interior of...

Background Recently I had the opportunity to repair an early 70s Polish radio frequency generator - PG19. It utilizes a traditional LC oscillator with optional AM modulation from external input ...

Background I designed this shield for LiFePo4 battery owned by SP9KJM radioamateur club. It features 6 XT60 connectors because we use them for Icom IC 7300 and other radios. Materials In order...

Background I received a VX-7R radiotelephone from Maciej SQ9NJL for checking its functionality and unlocking the 4m band. After the initial charging, the radio began to show signs of life, so I th...

Background I haven’t built any ham radio transceiver in my life. I can’t recall any serious problems while recreating shortwave receivers, but I have never managed to add a transceiver and thus ...

Introduction I am developing an antenna system for a stratospheric balloon for the Silesian Aerospace Technology scientific club. Currently, I am creating a miniature copy of the antenna deploym...

Introduction Many electronics engineers prefer digital oscilloscopes over analog ones. Considering that a digital oscilloscope allows for easy measurement of frequency, RMS value, and many other...

Why I build it? Since 2021 I belong to DIPOL scientific circle. We deal with all techniques of electronic communication, and an important part of the meetings are discussions on topics related t...

Introduction As a volunteer, I worked on the project the details of which I cannot reveal. I created GUI for the robotic arm with NodeRED and then I found out that the same entity that managed thi...