Here’s 2 pictures which shows how to transfer electricity without using wires, one is the fully completed second sec exciter is guess what despite the last 2 series coil sections […]
Signal Injector Circuit
While troubleshooting amplifier and audio related equipment, a signal injector circuit becomes one of the most essential tools, here we learn how to make a signal injector circuit. Here is a two […]
Light Activated Switch Circuit
This light activated switch circuit, automatically switches ON a connected lamp when night falls, and switches it OFF during day break. It has many applications, it could be used as […]
Simple Transistor Tester Circuit
Simple transistor tester circuit is quite easy and low cost circuit, is just not built to calculate any transistor efficiency figures, however is designed to get fast testing to signify […]
PIR Motion Sensor Circuit
This PIR motion sensor circuit detects a human presence and can be used to sound an alarm when a human is detected within its range. This is my smallest, cheapest, […]
Simple Multi-function Timer Circuit
This Multi-function timer circuit can be used to generate many different timing outputs at different desired ranges. A timer is practically unachievable without IC 555 or counter ICs along the […]





