Sunday, April 24, 2011

transmitter using four transister




http://www.geocities.com/Eureka/Park/5323

four transister transmitter

sine wave transmitter

4 transistor

Friday, April 22, 2011

ne 555 circuits - astable circuit




ne555 circuits, astable multivibrator circuits, ne 555 ic , hobby circuits with ne555

Saturday, April 9, 2011

electronic buzzer with ne55 ic




electronic buzzer circuit diagram with ne 555 ic