LED flashlight circuit or LED torch with 1.5V battery
This high power led flashlight circuit look like torch by 1.5V battery only so it can be used, small so Easy to carry in various places,also very bright […] Read more
AC variable power supply, 0-30V 3A
This is AC variable power supply circuit that apply output of 0-30V at 3A by use electronic components, bridge diode,and more, to control voltage[…] Read more
Diy digital voltmeter panel meter 0-50V
This is Diy digital voltmeter panel meter 0-50V is 0-50V scale. Display with LED 7 segment. In cost 3$ dollar only, builds simple regulator dc power supply Read more
Simple SCR tester circuit diagram
Simple SCR tester circuit diagram is very useful. We can know location pin on gate lead, anode lead and cathode lead. can also test diode, LED and Triac Read more
ECG simulator circuit using CD4521 and CD4017
ECG simulator circuit is very useful in the medical community. Such as experimental research – development of bio-medical image, using Digital IC as main [….] Read more