Here is a handy diagram for circuit bending a Toysmith Megaphone Voice Changer. There are a couple more mods you can do to this bad boy but the ones pictured are the key to getting sound in and out via jacks, as well as pitch and feedback loop.

These are really versatile in the studio and can be used as a microphone, as an effect pedal, or as a standalone noise unit.
Circuit Bent POTAR Toy Smith Megaphones
Circuit Bent Megahone FOR SALE

POTAR Modified Toysmith Voice Changer Megaphone – RED
POTAR x Toysmith Megaphone Voice Changer
Mods include:
- 1/4″ input and output (mic and speaker still function as normal)
- Pitch control of the different effects
- Feedback Loop with on/off & control knob
- Always on switch, no need for the trigger
- Speaker kill switch for when you are plugged in
These are always purchased new and then modified.
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