I would like to build a zapper from parts around the house or modify an existing electronic device that would have the same effect. (10hz-500KHz) 9-volt operated DC pulse (positive offset) output amps 5-10volts. frequency between 10-500,000 pulses per second. the frequency is the most important part. If you need the specifics:
Use Shoebox or Buy a Plastic Project Box
9 volt battery
9 volt battery snap connectoron-off toggle switchIf not available, choose any toggle switch with holes in the contact points or Radio Shack 275-612 1 K Ohm resistor, brown-black-red-gold3.9 K Ohm resistor, orange-white-red-gold39 K Ohm resistor, orange-white-orange-goldlow-current red LED.0047 uF capacitor.01 uF capacitor555 CMOS timer chip (TLC 555)8 pin wire-wrapping socket for the chipIf only 16 pin sockets are available, cut one in half OR leave half empty. Editor's Note: These parts have been discontinued at most Radio Shacks. 8 pin wire wrap sockets are available at many other electrical supply stores such as:
www.PositiveOffset.comshort (12") alligator clip leadsIf not available, use 14" length from Radio Shack, 278-1156Micro clip jumper wiresIf not available, use mini-clip jumper wires 278-0162 bolts, about 1/8" diameter, 2" long, with 4 nuts and 4 washers2 copper pipes, 3/4" diameter, 4" longSharp knife, pin, long-nose pliers, tape, 4 twist ties or rubber bands.