Minimum-component-flasher


Posted on Aug 19, 2012

Opening SA, changes the indicator lamp from flashing to steady-lit condition. The 6-V incandescent lamp on the collector of Q2 requires about 0.3 A. A 1-KO load resistor limits Ql`s collector current to about 6 mA.


Minimum-component-flasher
Click here to download the full size of the above Circuit.

The circuit is, therefore, asymmetrical with respect to the on currents of the transistors, allowing use of a much smaller transistor for Ql than for Q2.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Miniature High-Rate ESC with BEC and Brake
RC Charger
Switching inverter for 12v systems
Tone burst generator
door opener science project
Monolithic Synchronous Voltage-to-Frequency Converter
Versatile Micropower Battery Protector
One of reversing circuit reverse braking resistor in series with a DC motor armature start



Top