Assembly instructions for kit #8
All rights reserved. 2001 Simple Motors, LLC
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19. You may add a ZNR if you want to experiment with higher voltages or make more reliable
motor. The ZNR is a small electronic part that absorbs the spark inside the reed switch. In
our experiments the ZNR provided an additional reed switch protection even in the motor
with the transistor.
The ZNR is not required for the motor to work. You may also add it later. However if you
decided to add the ZNR at this time skip this step and go to step 20.
Take the two pieces of magnet wire you cut earlier and clean the wire tips using sandpaper
to remove the insulation. Clean about 3/8" (10 mm) on both ends of each wire piece. Solder
these wire pieces to a reed switch as shown in the first picture. If you did not use a
soldering iron before it is a good idea to practice on soldering two pieces of wire to each
other. See the Links page at our web site for tips on soldering.
Insert the reed switch wires into the universal reed switch/Hall Effect switch stand. Be
careful not to break the reed switch, it is very fragile. Twist the wires as shown below:
20. If you decided to add the ZNR at this time follow these instructions otherwise skip this step:
Take the two pieces of magnet wire you cut earlier and clean the wire tips using sandpaper
to remove the insulation. Clean about 3/8" (10 mm) on both ends of each wire piece. Solder
these wire pieces to a reed switch and the ZNR as shown in the first picture. If you did not
use a soldering iron before it is a good idea to practice on soldering two pieces of wire to
each other. See the Links page at our web site for tips on soldering.
