Tuned Radio Frequency TRF Receiver

Tuned Radio Frequency (TRF) Receiver Circuit diagram. Super heterodyne receivers have been mass-produced since around 1924, but for reasons...

Acoustic Distress Beacon

An ELT (Emergency Locator Transmitter, also known as a distress beacon) is an emergency radio transmitter that is activated either manu...

Build A Relay Toggle Switch

Half of RL1 and RL2 manipulate the switching and the other is connected to an application. Relays are 200 ohms above ground and at one poin...

Simple Siren Circuit

This circuit will generate siren sound when S1 pressed and increate sound frequency becuase capacitor C1 charged when switch S1 released th...

Simple Micro Inverter circuit DC voltage AC 12v x110v

This is a micro - inverter DC voltage to AC from a 12v battery can generate a voltage of 110 or 220 volts AC and a frequency of...

Meet with Arduino PIC 32

What do you think of using the good old pic in a 32 Ardino ? This would boost their projects, leaving the Arduino 5 times faster, increasing...

Simple Music Generator Schematic Using UM66

UM66 is a pleasing music generator IC which works on a supply voltage of 3V. the required 3V supply is given through a zener regulator. its...