Re: TDK UHV caps

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

Original poster: "Steven Ward by way of Terry Fritz <teslalist-at-qwest-dot-net>" <srward16-at-hotmail-dot-com>

I used the same exact caps in a 15/30 system.  I had 4 parallel 2nf 40kv 
TDK UHV caps.  They ran cool for long periods of time and seemed just 
fine.  The coil was small (11" x 2" secondary!) and made up to 22" sparks 
at best.
With a larger system im sure it would have been better. 19 in parallel (im 
left to assume that) would have great current capabilities.  What voltage 
are you using?  And no, they wont explode if they fail.

Steve Ward






>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: Re: TDK UHV caps
>Date: Sun, 16 Mar 2003 15:31:11 -0700
>
>Original poster: "Terry Fritz" <teslalist-at-qwest-dot-net>
>
>Hi Zagarus,
>
>I have used this bank (17nF 30kV) for many years with no problem at 
>all.  I am not sure if it is the "UHV" types or anything like that (I 
>think mine are the "4001" series??) but it does work fine and TDK makes 
>fine door knob caps.  Dan or Ken probably know much more about the "UHV" 
>series?
>
>http://hot-streamer-dot-com/temp/P3160008.jpg
>
>I did have to space the end plates further apart with washers since the 
>plates were arcing across the edges.
>
>In general, there are high loss door knob caps (cheap) that are made for 
>filtering basically DC.  And there are expensive ones made for transmitter 
>uses.  We want the latter...
>
>Cheers,
>
>         Terry
>
>
>
>At 02:06 PM 3/16/2003 -0800, you wrote:
>>I am building my coil and I will be using TDK UHV
>>series caps, a bank of 19 2nF 40kV doorknobs. Are they
>>safe to use? will they blow up? and are they going to
>>be annoying?