If you have to come to this page directly from a search site, please go to this article first. ThisContinue reading
CRYSTAL SET The simplest radio receiver, known as a Crystal Set, consists of nothing more than a coil, tuning capacitor, diode detector,Continue reading
An electret is a permanently charged dielectric. It is made by heating a ceramic material, placing it in a magneticContinue reading
After getting several comments from young electronic students , I am rewriting this article to make the FM transmitter makingContinue reading
A dark sensor can be converted to a simple FM transmitter using the following components. This FM transmitter is very sensitive and it has transmitting range of 30 meters.Continue reading
In this case, LDR has been replaced with capacitor C1-0.01uF and resistor R3-1K has been replaced with L1 & VC1. In place of a LED, a Piezo Diaphragm has been kept.
We just need to add inductor, capacitor and a piezo diaphragm to convert a dark detector to an AM radio.Continue reading