Sound activated strobe trip


Posted on Jan 8, 2013

Take strobe-flash pictures the instant a pin pricks a balloon, a hammer breaks a lamp bulb or a bullet leaves a gun. Use a transistor amplifier of 1-watt rating or less. (It must have an output transformer) The amplifier is terminated with a resistor on its highest output impedance, preferably 16 ohms


Sound activated strobe trip
Click here to download the full size of the above Circuit.

To test, darken room lights, open camera shutter, and break a lamp bulb with a hammer. The sound of the hammer striking the lamp will trigger the flash, and the picture will have been taken at that instant.




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