Continuity Tester


Posted on Nov 13, 2012

A continuity tester that has an audible indicator can be more useful in some cases than a visual indicator, because you n


Continuity Tester
Click here to download the full size of the above Circuit.

eed not take your eyes from the job at hand, Ql and Q2 form an audio oscillator. When the test leads are connected to a continuous circuit, the oscillator operates, and sounds a tone from the speaker.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Crystal Radio with LM358N
Busy Telephone line Indicator
4-Channel Commutator
12VDC to 220VAC Inverter Circuit Using IC 555
rs232 with opto isolation
Astable multivibrator-2 LED flashing circuit2N39043.7V
dtmf circuit



Top