Assembly instructions for kit #8
All rights reserved. 2001 Simple Motors, LLC
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26. Locate the base (B), collector (C) and emitter (E) leads on the transistor:
IMPORTANT: Do not overheat the transistor when you solder it. The soldering iron heat may
destroy this sensitive device. If you were unable to attach the wire or resistor in 3 seconds,
let the transistor cool off, and then try it again. Only solder one lead at a time and allow the
device to cool before soldering the next connection.
27. Select the motor you want to assemble and follow its recommended steps. When you want
to build another motor unsolder all of the connections first.
You may also add a special switch, available at our site, to your motor. It allows switching
between all four motors with a simple turn of a knob.
A. Reed Switch Motor.
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Before connecting everything together connect both wires from the electromagnet to the
battery. If the electromagnet doesn’t repel the permanent magnets away, switch the wires.
When it repels, disconnect one wire and connect it to the reed switch. Connect the other
end of the reed switch to the battery. You may tape the wires to the board using scotch
tape.
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Start with 1.5 V. If the motor does not work, increase the voltage to 3 V. If it doesn’t help,
ensure that the rotor rotates freely and check all the connections – it is important to clean
the insulation thoroughly. Make sure the batteries are fresh and connected properly. If the
motor still does not work – check Troubleshooting section of our web site.
This is the wiring diagram for the reed switch motor:
