Simple inverter circuit using 6 transistors
This is simple inverter circuit on 30 watts, It converts DC voltage from 12V battery to AC 220V-230V at 50Hz which is electricity same use in your house[…] Read more
7805 variable voltage regulator circuit with PCB
This is IC 7805 adjustable voltage regulator circuit, can adjust voltage output: 5V up to 30V as need 6V,7.5V,8V,9V,10V and 12V etc at 1A it small and cheap[…] Read more
7805 Constant Current Battery Charger circuit
This is IC 7805 constant current circuit for battery charger, It is advantage that we have IC- 5-volts 1A positive voltage regulator as current regulation Read more
Doorbell circuit using transistors and IC-555
The 2 tone doorbell circuit, which is an electronic buzzer types,but them has melodic sound than general electric bell. People have seen two tone bell sound Read more
3 Electronic dice circuit with 7 segment display using CD4017
This is an electronic dice circuit. Which looks like a real dice. We use only the press switch being thrown. this is the high-tech toys. Such as, Game PC Read more