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discharging power cap?? pics now added

Posted: Wed Mar 21, 2007 2:13 pm
by HEMI1500
I am going to attempt to put a stun circuit into a project box, Replacing the slider power switch for a toggle and the rocker momentary switch for a standard momentary button, Any way before i get into other details of what i need. First I need to find out how to discharge the cap in the stun gun I have it opened when doing so i broke one of the tangs off one of the leads on the cap. So before i attempt any soldering on anything I am asking what is a safe effective way of discharging the cap.

Thanks

I forgot to mention that there is two wires coming into the cap from the bottom also, i will try to get a pic later.
Thanks

I have read that just by doing the screwdriver thing you could risk the possibility of blowing the lowest resistor...anyway here is the pics

http://www.putfile.com/pic.php?img=5040026

http://www.putfile.com/pic.php?img=5040025

http://www.putfile.com/pic.php?img=5040024

http://www.putfile.com/pic.php?img=5040023

Posted: Wed Mar 21, 2007 2:28 pm
by leeeeshad
screwdriver across the termnals should do it

Posted: Wed Mar 21, 2007 8:04 pm
by Scope
screwdriver it... there are better ways more scientific ways but if you dont know then then you shouldnt try them... screwdriver it

Posted: Wed Mar 21, 2007 8:07 pm
by ShowNoMercy
Well how big is the capacitor rated at? Couldnt you find a load, such as a light bulb, motor, resitor etc and hook it up till the cap is discharged completely? I know that technically the screwdriver approach would work, but it is not good for the cap and is dangerous if the screwdriver becomes airborne. Im not sure how big the cap is but on big ones when you discharge them that way they will throw things pretty far.

Posted: Thu Mar 22, 2007 12:49 pm
by Scope
yea whats the voltage and Uf on the cap

Posted: Thu Mar 22, 2007 1:58 pm
by HEMI1500
the only thing on the cap says NEWNIN

Posted: Thu Mar 22, 2007 2:04 pm
by deusXmachina
Use a meaty resistor, like 2 kOhm, and let each lead touch the contacts for a while, it should discharge it slowly. After like 5 minutes the voltage should be low enough that you can screwdriver it without blowing a hole in the screwdriver head. Oh, and don't look at it or wear welding goggles if you do decide to short it out :wink:

Posted: Sat Mar 24, 2007 11:49 pm
by singularity
no not 2kohm use around 500kohn or your gonna get a big spark when you connect it