Subject: Toroids and noise. (fwd)
Date: Sat, 3 May 1997 19:03:07 -0600 (MDT)
From: List owner <listown-at-poodle.pupman-dot-com>
To: tesla-at-poodle.pupman-dot-com
---------- Forwarded message ----------
Date: Fri, 2 May 1997 22:34:23 -0600
From: "PWAC Inc." <pwac-at-mail.flinet-dot-com>
To: Tesla-at-pupman-dot-com
Subject: Toroids and noise.
First, can I make a toroid (like a 3" outer ring diameter, with a total
of 12" wide) by covering foam toroids they sell in craft store with
aluminum foil? I can't see why not? I think it would he a real good one.
Anyone try Bronze or Silver (or whatever) plating these foam toroids,
and
somehow connecting it to the top terminal of the secondary??
I have a sh_t load of Bronze plating stuff in my utility room, I'm sure
I
would first paint/coat the foam with something like polyeurythane (sp?)
and make sure its REAL smooth, then coat it with the chemicals and metal
powders, anyone tried/thought about this?
Why? I am trying to visualize covering a toroid with aluminum foil, and
I
am finding it hard to see it smooth, there for giving points that may
only constantly emit corona/sparks.
Also, how loud are these spark gaps suppose to be!!
I made a very small rolled cap out of 2 .74mil white kitchen trash
bags,
sliced up and rolled to make a cap about 3" tall, and about 2" diameter
(note: there was about 32x.74 mils on every turn), can someone calculate
this out for me? If you can calculate these, can you find out how many I
would need to complete 0.0047 uf?
BTW: Transformer 12kv, 30ma (0.0047uf)
Plastic: .74mil white kitchen trash bags, polyethene.
Total size of a single polyethene sheet: 2' x 4"
Aluminum was a double layered: 2' x 3" (1/2" border)
Dielectric constant: 2.2
Dielectric strength: 1200
Also, does it mater if the material is biodegradable? Will it break down
over time, or does it need sun light or bacteria for that?
I had this going with no oil, kind of like a test run, and it scared me
it was so loud, I was jumping a 1/2" spark, it was so loud, If I left it
on I could have gotten complaints from my neighbors, or maybe from the
cops (If my bass wasn't enough for em :)
It totally disintegrated the metal tacks in about 4 seconds. I am going
to
trash that cap, or I may take it apart and steal back my aluminum!
Also, can someone tell me what U.S.P stands for? I purchased some
mineral oil, and it is written on the container.
Thank you all
<Still shaken from the noise> Jeremy Bair.