[pianotech] Zapper

Diane Hofstetter dianepianotuner at msn.com
Tue Mar 2 14:31:45 MST 2010


I tried to build a zapper using Mike's instructions below.  Then I wanted something nice to house it--without having to build something.  So I went to a thrift store, started wandering around, and found THE answer!

 

Go to the electronics section, find a powersupply meant for a computer or some such device,  ($3-$6 vs. $14.95 at hardware store for dorbell transformer), check the rating on back to find the voltage you want.  On the working end, cut off the adaptor that goes into the computer, etc.  Pull the two wires apart to a suitable working length, attach tweezer arms.  

 

Fast, easy-to-make, easy-to-carry, cheap and looks good too!

Diane Hofstetter


 

 

If you want to build a zapper all of the necessary parts can be acquired
from a hardware store or home center. A doorbell transformer 8 to 12 volt is
sufficient, some AC cord and an AC plug for the AC side of the transformer.
Some DC wire about 10 gauge is sufficient and some connectors both the crimp
kind for splicing 2 ends together and the round ended kind to bolt through.
A  small piece of masonite, hardboard or even pegboard about 1/2" X 3/4" and
a large tweezers and lastly a small diameter non-metallic bolt and nut.
You begin by disconnecting the two arms of the tweezers, you can also make
the tweezer arms from old hack saw blades cut in half, grinding one end to a
point and bending it over.
Clamp the tweezer arms with the masonite or whatever you choose to use,
between them and drill a hole large enough for the small bolt to fit
through.
Attach the AC cords to the approriate ends of the transformer and the plug
to the end of the cord. (I used an old lamp cord with a pre-molded plug)
Attach the 10 Ga wires to the DC side of the transformer, attach the round
ended connectors to the open ends of the wire and attach those ends on
either side of the tweezers with the bolt and nut and washers if necessary.
You might want to mount it on a small board for portability and ease of
storage.

Plug it in and lightly touch the ends to one another if you see a spark you
have succeeded, if not check your connections. Remember it is important that
the two "sides" of the "circuit" or tweezers are insulated from one another
until they contact the center pin

When using this device do not hold it on the pin ends longer than a few
seconds, they heat up VERY quickly!

Don't ask me how I know!
(grin)

Good luck,

Mike
-- 

Diane Hofstetter


 		 	   		  
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