Re: Capacitors

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

Original poster: "Steve White by way of Terry Fritz <twftesla-at-qwest-dot-net>" <slwhite-at-zeus.ia-dot-net>

You make a good point about the Maxwells. I was simply going by Maxwell's
published specs for their caps. They make caps with pulse discharge cycle
times ranging from 100,000 cycles to 100,000,000 cycles. I still would not
buy one of the units with a low-rated discharge lifetime, especially since
they are used and I do not know how much life is left. I myself use a couple
of Maxwells, but they are rated new at 100,000,000 discharge cycles. So even
though I bought them used, I am fairly confident that there is a lot of life
left.

Steve: Coiling in Iowa

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Friday, January 25, 2002 11:07 AM
Subject: RE: Capacitors


> Original poster: "Lau, Gary by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Gary.Lau-at-compaq-dot-com>
>
> I whole-heartedly agree that there is an awful lot of utter garbage being
> sold on ebay suggesting that it's suitable for "Tesla", notably Glassmike
> caps and multi-microfarad sized caps.  If you're not sure is an ebay cap
is
> suitable for use in a coil, ask the list (and it probably won't be :-(.
> And don't get me started on the "Nikola Tesla Purple Positive Energy
> Angel"!  Shame on those sellers!
>
> But I'm not sure I share your concern for Maxwell caps.  I am well aware
of
> the rated life expectancy issues with Maxwell's (or any other cap), but as
> a practical matter, how many times have we heard of a Maxwell expiring in
> actual Tesla service?  I have not.
>
> Gary Lau
> MA, USA
>
>  -----Original Message-----
> From: Tesla list [mailto:tesla-at-pupman-dot-com]
> Sent: Friday, January 25, 2002 10:15 AM
> To: tesla-at-pupman-dot-com
> Subject: Re: Capacitors
>
> Original poster: "Steve White by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <slwhite-at-zeus.ia-dot-net>
>
> Many things for sale hang the words "tesla coil" onto them, especially on
> E-Bay. Do careful investigation to avoid wasting money. I see a lot of
pulse
> discharge caps on E-Bay which are unsuitable for tesla coil service. A lot
> of the Maxwells that I see on E-Bay are models that have a very low pulse
> discharge cycle life. If the cap only has a discharge cycle life of
100,000
> cycles it will only last about 500 seconds of total run time when used
with
> a RSG at a break rate of 240 PPS. And that is only if the cap is new. They
> are almost always used with unknown service life remaining. There are some
> good deals out there but you must know what you are buying.
>
> Steve: Coiling in Iowa
>
>
>
>
>