Variable on-off times circuit using two 555 timers


Posted on Feb 7, 2014

This timer uses two 555 ICs to Vary the desirable output. VR1 and VR2 are the potentiometers to change the speed of cycles.


Variable on-off times circuit using two 555 timers
Click here to download the full size of the above Circuit.

You can drive it with 9 to 12 volt power supply and few milliamps.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

An Ionisation Chamber Shield for OpenRelief
Infrared Alarm Barrier Circuit
AT89C2051/4051 Driving Dot LED
Infrared control dimming circuit



Top