Instructions for building the electronic kitset FK901. "Electronic Shock (low power)".
The instructions that came with the Future Kit kitset where woefully inadequate and in Engrish. This page contains more detailed instructions.
Transformer DPT The big blocky thing.
All resistors are three band so...
R1 1K brown black red
R2 39K orange white orange
R3 300K orange black yellow
R4 100K brown black yellow
R5 10 brown black black
R6 10 brown black black
Diode D1 1N4007
Transistor TR1 C458
Transistor TR2 C9012
Transistor TR3 C9012
Battery snap (Not included)
9Volt battery. (not included)
Capacitor C1 0.1
These sites explain how to decode the coloured stripes on the resistors. This has been done for you in the parts list above.
http://www.elexp.com/t_resist.htm
http://www.montek.com/tutorials/res_codes.html
http://www.tkb-4u.com/code/resist/resist.php
First check all the items are in the kit. |
 The legs of the diode are 0.8mm (according to the vernier callipers) and don't fit through the existing holes. |
Drill the diode holes out to 1mm. Drill starting on the copper side so that as the bit pushes through it doesn't tear off the copper pad. |
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Start with the drawing pins and the resistors. Make sure they are flush with the board, neatly positioned and be careful with your soldering. For a great how to solder tutorial check out these sites... http://www.kingbass.com/soldering101.html http://www.ladyada.net/make/tutorials/soldering.pdf |
After soldering snip off the excess leads. |
After soldering the drawing pins carefully snip of the ends of the pins with the snips. DO NOT USE THE STANDARD SNIPS.
They are not grunty enough and will get damaged.
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Use the heavy duty snippers. We don't want to hurt anyone with these spikes. Notice how the pin spike is close to the fulcrum of the pliers to make cutting as easy as possible. |
Also insert the diode. The legs are too fat for the holes so these holes must be carefully drilled larger. The instructions for this are earlier as it is easiest to drill through an empty board. The diode must go in the correct way around. The stripe on the diode matches the stripe on the circuit board. |
Solder the diode into place. Trim off the excess leads. |
Insert the transistors. Solder the legs and then trim them off. |
Solder the capacitor into place. Trim off the excess leads. |
The transformer has a red mark on one leg. This is the top left leg when looking at the circuit board from the top. |
Solder the four legs of the transformer and trim off the leads. |
The battery snap is not provided in the kit. Purchase one and solder the red wire to the positive and the black wire to the ground. |
Carefully check all of your solder joints. |
They should all be smooth, shiney and not cross over to any neighbouring solder pads. |
Attach the battery and test. If it doesn't work the first thing is to carefully heat each solder joint to check there are no cold connections. Check the diode is in the correct way and that the transistors are in the correct places. Is the battery fully charged? |
Have fun zapping your friends!
