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Directory:Bedini SG:Replications:Walter

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Walter's Replication of John Bedini's Simplified 'School Girl' Motor and Battery Energizer


Brief Description 
16-year-old from Argentina achieves rotation on Dec. 31, 2004 using Used a CD drive as a shaft and a CD as a wheel.


Contents

Photos/Video

pending

Chronology

Reverse chronological sequence of your activities

Jan. 1, 2004

Walter reports his replication to Bedini SG group.

Dec. 31, 2004

Hopeless, I connected the circuit, approached the coil about 3 milimeters (0,1") and gave the wheel a strong rotation and... VOILA, the transistor turn on and the motor started its life.

So the reasons because the motor didn't work at the beginning were:

1. The distance between the coil and wheel was large (about 3/8").

2.I didn't spin the wheel faster. Later I fixed properly the magnets and cleaned a bit the circuit. The motor restarted at 16:15 and here are the values of the batteries voltage (B1 input batt, B2 Charging batt).

Dec. 30, 2004

Passed all day looking for the problem: NOTHING (this was very frustrating; but I keep trying). I thought that the magnets small size doesn't provide enough flux to the coil.

Dec. 29, 2004

Construction finished at night: Tried to run motor but failed. Tested diodes, base esistances, transistor: OK.

Data

Dec. 31, 2004

16
15 : B1-12.72 Volts, B2-9.58 Volts
16
45 : B1-12.51V, B2-11.32V
17
15 : B1-12.49V, B2-11.45V

and keep going...

I am waiting your instructions about what to do next (base resistor, four batts, supercharging).


Replication Particulars

Motor features:

  • Used a CD drive as a shaft and a CD as a wheel.
  • Magnets are 3/4" diam x 1" length.
  • The coil isn't attached to the wood base.
  • Wires are nearly #20 and #23 (Argentina uses different units).
  • Coil has about 600 turns.
  • Diode 1N4002 replace 1N4001 and FR107 is here instead of 1N4007 because the two original diodes doesn't exist here.
  • Transistor is 2N3055.
  • Base resistor is a 47 ohm with a 10k pot.
  • Input battery: lead-acid 12 volt 65 Amp/hr (car

type).

  • Charging battery: lead acid 12 volt 55 Amp/hr.

See also


- Return to School Girl Radiant Energy Circuit and Motor
- Other Directory Listings
- Return to PESWiki main page

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