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Re: caps

Subject: 
        Re: caps
  Date: 
        Sat, 22 Mar 1997 13:34:12 +0200
  From: 
        Kenneth Aaron <kennetha-at-geocities-dot-com>
    To: 
        Tesla List <tesla-at-pupman-dot-com>

>Subject: 
>        Re: caps
>  Date: 
>        Wed, 19 Mar 1997 16:25:44 -0500 (EST)
>  From: 
>        SSNSanders-at-aol-dot-com
>    To: 
>        tesla-at-pupman-dot-com
>
>
>In a message dated 97-03-19 14:23:57 EST, you write:
>
><< 
> I meant put them is series to get higher voltage. the microwave caps
> are rated at 4000vrms and I have a neon xfrmr at 12000v.
> can i use 5 of these in series to get 20000v ? will this hold the
> kickbacks
> from the rf ? >>
>I have read of a series/parallel arrangement of microwave caps to
>achieve the
>voltage rating and capacitance rating but before I went to that trouble
>and
>then possibly facing the possibility of one of those cans exploding, I
>would
>just make a single cap. You need a voltage rating of at least 2- 2.5
>times
>the input voltage on the caps to be sure they will last a while so for a
>12KV
>neon you need a 24-30 KV rating and preferably 30 KV. Thats about 15
>microwave caps to get the voltage then the parallel units are needed to
>raise
>the capacitance!  Too much chance of failure with all that ratnesting
>you
>will need to do not to mention the room taken up but one would be cool
>and
>functional . I read the list a while and then looked at my coil and was
>surprised it worked at all, the Q was horrible, I was getting 6-7 "
>streamers
>even at that but I just tore it all apart. All that stranded wire and at
>long
>lengths, trashy toroid, multiple caps, brass knob spark gaps, so now its
>going to be built with solid short conductors, large thick metal disc
>spark
>gap, maybe sealed in glass under vacum and with nitrogen, the correct
>chokes,
>and ONE cap of the correct rating which would have to be better than
>using
>several.    Stephen Sanders
>
>




I got the point. I'll try the 'six pack' bottle cap.

thanks.