Re: Mini-coil wall ground (fwd)

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Brett Miller <brmtesla2-at-yahoo-dot-com> 

John,

I used an aluminum foil counterpoise with a OBIT
powered coil.  This seemed to work fine for
prototyping and testing.  However, I can't verify
maximum spark length when compared to a proper RF
ground.  By the time I constructed a proper RF ground
I was running a 12/60 and had 4 foot arcs.

-Brett



--- Tesla list <tesla-at-pupman-dot-com> wrote:
 > Original poster: Gregory Hunter
 > <ghunter31014-at-yahoo-dot-com>
 >
 > I got away with it a couple of times. Once with a
 > 60Hz, 8kv NST coil in the US, and again later on a
 > 50Hz, 15kv NST coil in the UK.
 >
 > I never had any problems, except that my wife said
 > her
 > cordless phone was unuable when the coil was
 > running.
 > Even so, I can't recommend it. I'm lucky I got away
 > with it. If a proper ground is inconvenient, build a
 > bipolar coil.
 >
 > Cheers,
 >
 > --- Tesla list <tesla-at-pupman-dot-com> wrote:
 >  > Original poster: Tesla List Moderator
 >  > <mod1-at-poodle.pupman-dot-com>
 >  >
 >  >
 >  >
 >  > ---------- Forwarded message ----------
 >  > Date: Sat, 17 Jul 2004 17:53:19 -0700 (PDT)
 >  > From: John <fireba8104-at-yahoo-dot-com>
 >  > To: tesla-at-pupman-dot-com
 >  > Subject: Mini-coil wall ground
 >  >
 >  > Hello all,
 >  > I need a little, or maybe alot, of input on
 > this.I
 >  > wish to know of any problems large or small with
 >  > using the house ground for a 230 watt mini-coil.
 > The
 >  > major problem I'm concerned about is destruction
 > to
 >  > computers,T.V., etc. that share the same ground.
 >  > Coil specs
 >  > OBIT
 >  > 10 kv
 >  > 23ma
 >  >
 >  > ~ 505kHz calculated and measured.-JavaTC kicks
 > -at-$$
 >  > Thanks,
 >  > John
 >  >
 >  >
 >  >
 >
 >
 >