Refrigerator Pig Schematic - Upon opening your fridge door the photocell is exposed to light and the piggy oinks. HOME

Reverse engineered circuit diagram is of an early commercial design which uses an OP-AMP to make simulated pig sounds. Modern Fridge Pigs sound much better because they store an analog recording of a real pig in a cmos chip.

Circuit Diagram aka Schematic reverse engineered from circuit board

I do not gaurantee the accuracy or safety of any information herein.
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Do not experiment with or build any of the above circuits.