Re: failed cap

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

Original poster: "philip barnes" <luck_phil87-at-hotmail-dot-com> 

lol and what is the addy to your website?

Phil


>From: "Tesla list" <tesla-at-pupman-dot-com>
>
>
>Original poster: BunnyKiller <bunikllr-at-bellsouth-dot-net>
>
>Hi Phil...
>
>hmmmmmm    building ones own cap...    you didnt see my website did you ??
>;)
>
>no matter how hard you try to build your own cap ( and yes Ive built 3 of 
>them and all 3 failed  eventually  the plate cap lasted the longest
>but it was made from ultra clean PE sheeting 70thou thick with REAL 
>transformer oil...) its best to buy a manufactured cap set    be it an MMC
>  or Maxwell's systems on Ebay ( best prices Ive seen as to date)
>..  I have done rolled caps   plate caps glass caps and wasted alot of $ 
>doing so  ( but hey  it was a learning experience and ehhhhhh  yes...
>it was expensive)
>
>definately sounds like you have blown a hole in the dielectric ( PE 
>sheeting)  and the oil is arcing out  ( pull it apart and look for the 
>black holes in the plastic) ...the spark gap at that setting is less of a 
>resistive value than oil in the cap... yes most definately ..   without a 
>secondary in place to "asorb" the energy the cap will arc out first....
>
>
>bite the bullet and buy a set of MMC caps or a set of Maxwells   dont do 
>what I did and waste your money trying to build a home made cap...
>unless you like learning the hard way   ......
>
>Scot D
>
>
>Tesla list wrote:
>
>>Original poster: "philip barnes" <luck_phil87-at-hotmail-dot-com>
>>Hi.
>>    i built a cap with 1.6 mm or 64 mil thick PE dielectric and put the 
>> whole thing in canola oil. It worked great for a while but while i had 
>> just the cap across the nst ,,, with no tesla coil connected.. to test 
>> my new mulitgap sparkgap... the PE between 2 of the plates broke down 
>> and now it blows bubbles and hisses and only produces a spark in the gap 
>> if the gap is 1 mm or 30 mil . Its pretty much had it and must be 
>> breaking down at 1 or 2 thousand volts..IS it more stressfull on a cap 
>> with no tesla coil connected and is it suprising my cap did not last in 
>> my config. The plates are 1.75" clearance from each end and 1" along the 
>> sides. !6 sheets of makes each layer
>>
>>Phil
>>