Re: Homemade Reverse Jelly Roll Capacitor

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Mddeming@xxxxxxx 

In a message dated 7/11/05 12:46:41 A.M. Eastern Daylight Time, 
tesla@xxxxxxxxxx writes:
Original poster: "Wilson Ng" <metalstorm2002@xxxxxxxxxxx>


   Hello there. I'm currently using a capacitor made from foil tape and
semi-clear plastic bags used for holding  fruits and veggies. The foil tape
is unpeeled from the wax paper for easier handling. I wrapped layers upon
layers of bags around a length of foil tape then put another length of foil
tape over it. After that, I rolled it up like a carpet and held it with a
rubber band. It's compact and has a higher capacitance than 6 bottle caps.
I knew about the inductive effects so I rolled the two layers
in reverse midway in order to create two counteracting inductances. I'm not
sure if this is effective in canceling the effects. Inductive effects
aside, this seems like a very cheap and compact way to make high value hv
caps. Any thoughts?

_


Hi Wilson,

    Unless placed in an oil-filled canister with the air vacuumed out, 
this type of cap tends to burn through in tiny pinholes after a while. If 
they're easy enough and cheap enough to make, that might be OK.

BTW I noticed that 160 people named Ng had graduated from my high school 
between 1964 and 2004. Do you by any chance live in NYC? (RSVP Offlist)

Matt D.