Re: GE caps - the long answer ;-))

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

Original poster: "Crow Leader" <tesla-at-lists.symmetric-dot-net> 

It's reassuring to know Ohmite will still sell flawed parts without defacing
or destroying them. Sort of makes me want to run out and buy Ohmite
products.

KEN


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, November 09, 2003 8:47 PM
Subject: Re: GE caps - the long answer ;-))


 > Original poster: dhmccauley-at-spacecatlighting-dot-com
 >
 > Your post answered itself.  The fact you said you bought these surplus
sends
 > all kinds of warning flags that you are getting inferior capacitors.
 > Vendors typically release flawed products to the surplus market in a
chance
 > to make up some of the losses.  Usually, tax right-offs cover these
losses,
 > but in a lot of
 > instances, more revenue can be made by selling directly to surplus
vendors.
 > I made a similar surplus purchase on those "blue" Ohmmite PowerMOX high
 > voltage resistors about
 > a year ago for about $0.50 each for 10MEG resistors.  I was surprised to
see
 > they were failing left and right when I was using them with some MMCs i
 > built.  I called the vendor
 > with the lot number (printed on the resistors), and they indeed did scrap
 > these resistors due to an internal manufacturing flaw.
 >
 > Dan
 >
 >  > I've used the 42L's, (0.22 -at- 2000V) on my 5kVA pig powered coil.  Had
to
 > run
 >  > 30/string so they'd last a reasonable amount of time. At 20/string
their
 >  > life expectancy was a minute or two. (Ends blown out)  I bought them
 >  > surplus, (less than $1.00 each), so having to run 30/string wasn't such
a
 >  > big deal.
 >  >
 >  > I should also mention that when using Terry's original 0.056uF
Panasonic
 >  > caps I had to run 15/string, ("normal" was 8 to 10/string), or they'd
 >  > overheat and rupture the case. I suspect the reason I had to run so
many
 >  > caps/string is that  my ballast, (Sears welder), was shoving a fairly
 > large
 >  > "inductive kick" into the caps, well beyond what one would think. As
the
 >  > saying goes..... "your mileage may vary"!
 >  >
 >  > Jon Rosenstiel
 >
 >
 >