Wednesday, April 27, 2016

Working of a Lighter

It works on the principle of Piezo-electric effect.                               
When we start pushing the push button, it presses the hammer and spring assembly to move in the telescopic shaped plastic casing.                      

This force is enough for the crystal to generate a spark.                                                                            
Now, this spark falls on the gas and lights the air-gas mixture. 

Thursday, January 28, 2016

TRF Vs Superheterodyne Receiver

RF to AF
RF to IF to AF