A simple rectifier tube can produce high-quality X-ray radiographs. It is a cost-effective way to explore the principles of medical imaging and vacuum tube physics in a controlled DIY environment.

In this project, I built a simple yet effective variable high voltage power supply using affordable components, offering precise control for high-voltage experiments.

It is one of my Mechanical part designed in solid works as a assignment

With the new retro-style tuning dial and improved waterfall dynamics, the user interface is now as impressive as the receiver's performance.

PICOZX with ZX Spectrum emulation firmware and 2.8" IPS display and VGA output

Ported the complete device (all 16 modules and more working) to ESPHome

HackPlate is an open-source preheating station created for makers, repair technicians, and hardware enthusiasts who want full control over their tools. Built around a Raspberry Pi Pico (RP2040) and a Solid-State Relay (SSR 40A), it manages temperature control for PTC plates or heating elements with precision and reliability. HackPlate was designed as a transparent, modifiable, and educational tool — promoting the maker and hacker culture by encouraging learning, experimentation, and community-driven improvement. Anyone can modify the design, optimize performance, or contribute to its firmware and documentation.

PCB Reverse enginnering : 2 layers , pcb2

A simple but very useful Zener diode tester

In this tutorial, I am going to talk about the PC817 Optocoupler which is one of the most common and inexpensive 4-pin optocouplers.

The Brandner E-300 was an Egyptian turbojet engine, developed for the Helwan HA-300 light jet fighter.

An industrial-grade Star-Delta electrical control panel designed for motor starting applications, featuring overload protection, timer control, and safety interlocks

This ECC83 (12AX7) preamplifier project successfully delivers the warm, pleasant, and dynamic sound characteristic of vacuum tubes.

Turn voice into autonomy. Your mini rover learns to bypass obstacles and run full missions — all from simple commands.

Reverse enginnering of 6 layers PCB