What would YOU do with that? (Uses for odd components)

[Dud]

yes it use ambiant light

and not this one : “Optical tremolo” with his own little light

Mechanical Optical Tremolo

another construction with an engine [Optical tremolo (2)] motor + LDR + disc to obstruct the light (I made several discs with different cuts for different effect) I added a capo to contain more black otherwise in broad daylight it necessarily works less well [Optical tremolo (1)] and add a true bypass a little test with a drone