Bedini-Cole 1971 to 1984 built from lab notes

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Uploaded by on Mar 25, 2010

Linear-counter rotating ironless magnetic motor 100 watt.

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Science & Technology

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  • John, touchy subject but I'm serious about 1kw - 5Kw generator for personal use. Do you have anything along those lines? & how much?

  • Really nice piece of work John.

  • Are you ussing the sequential bipolar swith...? and how in the configuration of the rotor...?north sout...?

  • Very cool. Can anyone tell me what kind of torque you can get out of this?

  • howl ong has this type of motor ran for?

  • @shannrenn Hey shannrenn How did you get over here on JB's site? good to hear from you again.

    yes, as I understand it the half bipolar circuit is north only. But still, running those transistors in parallel is an interesting challenge and needs a bit of finesse beyond just matching beta doesn't it?

  • My god, this is REALLY spinning up.. I never imagined a coil of wire with no iron core whatsoever can make this much torque.

  • John, using the half Bedini Cole circuit implies to me all north facing mags?

    Is that correct?

    Also since the MJL's are parallel it looks like you are using a resistor on the emitter to get a small voltage drop (0.1 -0.2 v @ nominal current) to get negative feedback to balance the current through the transistors, If so, about what ohms would you recomend to play with?

  • @Shanjaq Oops, at 4:13 there are 3 magnets on the timing disc. Makes sense :D

  • at around 1:00, spectrometer on the audio track shows a strong primary trace at ~650Hz and 2 weaker secondary traces at ~970Hz and ~300Hz. (650 * 60) / 3 = 13,000 (RPM was quoted around 10,000?) Are there 3 pulses per revolution of the armature?

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