Assembly instructions for kit #5
All rights reserved. 2001 Simple Motors, LLC
♦
www.simplemotor.com
♦
9
Inspect your battery holder – it may have different connections inside. In this case you can
still use the jumper wire in the same manner to get all 4 voltages, but you will need to find
appropriate connection points for each voltage setting.
Insert bare ends of the jumper wire between the spring and plastic case to make a good
contact and hold them in place. This is how the jumper wire is actually used for 1.5 Volts
experiments (one end is disconnected and may serve as on/off switch):
19. 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 the transistor. If you were unable to attach the wire in 4 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. The transistor will most likely be extremely hot during
this process, be careful not to burn you fingers.
