Welcome! On this website, you can find links to my electronics projects. If you want to make any of these yourself, you can have the PCBs manufactured by a fabricator such as JLCPCB, Elecrow or PCBWay. Components can be purchased at Mouser or Digikey; both companies ship worldwide.

If you have any questions relating to a circuit or you'd like to suggest modifications/improvements, you can reach me at my email address:
    al5338 { letter "a" with a circle around it } seznam { full stop/period/point } cz
I check my inbox approximately once per week.

All my creations are open source; you are free to distribute, modify and sell them however you like.

Leningrad-1Leningrad-1: A Soviet-Designed ZX Spectrum Clone

A 48K Sinclair ZX Spectrum clone from 1988 that can still be built today using readily available components. Designed to be as simple as possible hardware-wise, requiring as few as 44 ICs (compared to around 60 ICs on most clones).
 

Logic probeGalaksija Logic Probe

Designed in 1983 for troubleshooting the "Galaksija" homebuilt computer from Yugoslavia. A versatile TTL logic probe that indicates oscillation with 4 LEDs.
 

Amplifier PCBsLM386-Based Audio Amplifiers (Mono and Stereo)

Small, simple audio amplifiers that can run at a supply voltage of 5-12VDC. Great for a variety of applications.
 

Object of unknown purpose...Miscellaneous

Assorted interesting things - the "museum" section of this website.

Last updated on Mar 8, 2025.
This page was first uploaded on Mar 2, 2025.
Background image by tile-anon.