Sonic Defender


Posted on Dec 16, 2012

This oscillator-driver produces a deafening sound of about 3 kHz, modulated with a 10-Hz warble. BZ1 is a Matsushita EFB-RP3


Sonic Defender
Click here to download the full size of the above Circuit.

4BZ. U1A and generate the 10-Hz waveform that modulates the 3-kHz tone that is generated by U1C and D, Ql drives the transducer through a 8-Q:l-kS2 transformer. R4 might require slight changes (±1 KOhm) to optimize sound intensity. Warning: Could cause hearing loss if improperly used.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

EAGLE PCB Layout Editor
simple mic pre-amp based LM358
usb 5v to 12v dc dc step up converter
operating modes
Puxing 777 Radio Headset Schematic
Accelerate the role of capacitance
Arduino DAC Signal Generator project



Top