Lasted edited by Andrew Munsey, updated on June 15, 2016 at 1:38 am.
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• OS:CD Motor old egroup replications
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You are here: Main Page > OS > OS:CD Motor > CD Motor old egroup replications
Replications
'Old egroup replications of the CD Motor as describe in the OS:CD Motor.'
As prepared by Tim Harwood, March, 2006.
This was the first oscilloscope shot taken. While the commutation was transistor based, the back-emf was stil clearly 80% of input, and the motor and circuitry reportedly ran stone cold. The experimenter was somewhat shocked by his results. The scope shot proved the back-emf of properly constructed Adams motors has a genuine current component i.e. it not just a voltage spike.
Brain's motor used bolts and 555 circuitry. It ran quite nicely once the pulse width was adjusted down.
This motor exhibited a genuine temperature drop in operation - as validated by a digital temperature probe. 24 awg wire at about 3 ohms. Thanks go to Adeonkonade for that work.
The replications that worked best tended to be the ones that followed the instructions.
The effect occurs within a relatively narrow rotor / stator geometry window.
This ground breaking experiment, really did put "cold energy" in the hands of home experimenters.
The replications proved it.