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Old 19 August 2015, 05:34   #594
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Gimpy's Avatar
Join Date: Jun 2012
Location: Liverpool, UK
Posts: 13
Hey guys!

I did my own mod using a PNP darlington (MPSA63), a 1K resistor, a 1uF capacitor and a buzzer.

This circuit is easier and works like a charm!

The buzzer I used is a SBT-12 but any buzzer 5V to 12V with any frequency should work.

The peak generated by Gary is so tiny that it has to be stretched by the cap and a transistor with a large Beta or else, you can't hear it.

Result really sound like a floppy!
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