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A quick and dirty and dangerous sound activated flash to catch moments in time
The sacrificial victim here is a pair of harmon kardons from a garage sale $1
then go to mouser and download the datasheet, in this case the chip is a ba4560. your looking for which pins are the amps +&- ins, there should ...
disconnect the leads from the speaker, cut the traces to the RCA jack that the slave speaker connected to, and attach hookup wires to the op amp pins ...
They are attached in series with a 1 k pot and a 3.6 micro farad capacitor, the pot acts as a sensitivity control.
I used a 2n687, I tried a couple of diff ones before I found one that works, I hope you have a good junk store near by, mine ...
This is easy, just jumper the anode and cathode of the SCR to the RCA connector
Cut the cord off the slave speaker and set it aside, get a disposable camera from a drug store or someplace. BTW CVS hooked me up, Walgreens gave ...
seal up the camera (put the battery back in), plug the cord from the camera into the modified amp, hook up power and tap the speaker, if it ...
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