Magneto-Conga - Self Player Conga - Big Business

YouTube via horchacha
"magnetic sequencer w/ three conga tones

using three Hall Effect Sensors

dc speaker is pulse width modulated for speed control
mangets are placed on spinning mole can to make rhythms
three channels - as many magnets are you can fit on it
i only have four magnets right now sorry
three twin-tee drum tones and small amp

i was lazy and put them all on the same transformer
im going to put another supply in just for the audio section
but the motor interacting w/ the amp is funny

was orig built on piece of wood as base - and then built case
around unit from scrap

dave wright
www.notbreathing.com"