Radio Commercial Zapper Circuit


Posted on Nov 30, 2012

The LR inputs are summed, dated and drive a comparator. The comparator senses level and generates a transition when audio inputs go above or below preset thresholds. The number of these transitions (corresponding to rapid volume changes) are integrated and feed voltage controlled amplifiers. This device actually senses dynamic range. BLOCK DIAGRAM OF THE COMMERCIAL KILLER: The envelope of the signal is used to vary the pulse rate from IC2-C.


Radio Commercial Zapper Circuit
Click here to download the full size of the above Circuit.

The pulses are integrated; the resulting signal controls the gains of a pair of VCA`s.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Electromyogram Monitor
Temperature meter
Operational-amplifiers
markII
how to make simple earthquake sensor
fet audio mixer circuit
12 volt car battery monitor
Reading and writing Atmega168 EEPROM Tutorial



Top