The post discusses a simple fire alarm circuit that you can build and install at home or shop for detecting a fire hazards and sounding an alarm. At the point […]
Magnetic Proximity Switch Circuit
This magnetic proximity switch circuit can be used to switch a load ON/OFF when a magnetic field is detected. How the Circuit Functions The Magnetic Proximity Switch Circuit is based […]
Recording Level Meter Circuit
This simple recording level meter circuit can be used for displaying the recording level of an audio system. The circuit shows a two—stage voltage amplifier driving a recording level meter. […]
Dark Room Timer Circuit
Working in a darkroom is always fraught with problems. You surely know Murphys Law of; but Let’s not go into that here. Suffice it to say that normal lights cannot […]
Transmitting Electricity Without Wires
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 […]