The post explains a simple relay changeover circuit for extracting single phase AC from a three phase AC source irrespective of the condition whether all the three phases are present […]
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Simple TV Transmitter Circuit
The TV transmitter circuit presented in this post incorporates the European standard FM frequency for audio and Video up-links. Referring to the circuit below, Q1 is configured as a preamplifier for […]
Simple FM Radio Circuit Using a Single Transistor
When it comes to making an FM receiver it’s always thought to be a complex design, however the one transistor simple FM receiver circuit explained here simply shows that it […]
Simple 3 Phase Inverter Circuit
The post discuses the how to make a 3 phase inverter circuit which can be used in conjunction with any ordinary single phase square wave inverter circuit. The circuit was […]
Bicycle Dynamo Battery Charger Circuit
The post explains a simple constant current bicycle dynamo battery charger circuit which can be used for charging a Li-Ion or Ni-Cd battery from a bicycle dynamo electricity source. The […]
Maintenance Tips for Lead Acid Battery
The post discusses some of the crucial parameters related to lead acid battery maintenance tips for ensuring longer life to the device. The questions were asked by Mr. Raja Gilse, […]