This is the circuit diagram of 1W audio amplifier which use TDA7052 as the main component and other 5 pieces…
Flame, gas and smoke detector for fire alarm. You can combine this circuit with alarm circuit. The output will be…
The following circuit is a simple fire alarm circuit based NE555 timer and use thermistor as a temperature detector. This…
Here is the circuit diagram of simple multitone alarm. This is a low cost circuit which is simple and easy…
This document is the manual of 2x90W Stereo Tube Power Amplifier with EL34, model K4040 by Velleman. The document in…
Here is the circuit diagram of active DC voltage doubler which used to increase the DC voltage. This circuit drives…
This document explains about Basic Theory of DC to AC Inverters. Title: "The ABC's of DC to AC Inverters", arranged…
Here is the circuit diagram of 100W audio amplifier which using power transistor BDW83D and BDW84D for the final amplification.…
This is an audio bandpass filter circuit which will filtering the audio frequency from 300Hz to 2500Hz.. The lower and…
This is door knob touch alarm for your home security purpose. The alarm will be activated when someone touch the…