Re: New Maxwell on ebay

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

Original poster: "BunnyKiller" <bunikllr-at-bellsouth-dot-net> 

did a web check on maxwell caps   didnt find too much but did find a page 
to General Atomics  and they have a list of caps ( suppose they are a 
continuance of maxwell)  with specs on the caps in question...   also 
rechecked my coil and found that I had switched out 2 of the 31160's for 
2   31231 caps  ( 50KV -at- .144uF)  that brings my total cap system to
200KV -at- .0427uF   I also have sitting on the shelf a  31173 cap  ( 50KV -at- 
.10uF)   neither of the 31231 or the 31173 are listed at General Atomics 
site... but the 31160 is posted...
what I am now wondering about is that the caps I have and compared to GA's 
numbers, mine should have bit the dust a LONG time ago...  GA 
quotes   1X10^5 pulses   thats only 100,000  pulses.   So how do my caps 
last for almost 5 years with about 100+ hours running time on them in 
T-Coil operation and not blow up?       What do they consider a pulse?
a voltage reversal??  I always thought that the primary system saw a 
complete voltage reversal at 60 times per second   ;)

so if their numbers hold true   thats about a 30 minute life time  ;)

things that make you go hmmmm...


Scot D



Tesla list wrote:

>Original poster: "BunnyKiller" <bunikllr-at-bellsouth-dot-net>
>I should never answer emails when tired..  :)
>just went out and checked the numbers on the caps...
>I have the 31160 series        50KV   .114uF caps   4 in series   =
>200kv -at- .0285 uf
>
>same case style as the one in question  but taller by about 3-4 inches
>
>the smaller cubical shaped ones with the terminals on the sides are ( 
>IIRC) what we see so often on Ebay, are the ones used in defibulators....
>dont know what series they are....   thought those were the 37's
>anyway...    I guess having 4 in series has been the protective edge I 
>have going for me...   the coil ran well even with 2 in series...
>
>Scot D
>
>
>
>Tesla list wrote:
>
>>Original poster: DRIEBEN-at-midsouth.rr-dot-com
>>Scot,
>>
>>You may be correct about the 35xxx sereis Maxwell caps but
>>I think that you may have the 37xxx series caps confused w/
>>the 31xxx sereis caps. The #37667 35 kV -at- .03 uFD that many
>>of us have employed into our smaller coils is rated for 500
>>pps and some of the 37xxx series caps are rated for up to
>>1000 pps. OTH, the Maxwell 31xxx series caps are generally
>>rated for low pps, usually 1 pps.
>>
>>David Rieben
>>
>>----- Original Message -----
>>From: Tesla list <tesla-at-pupman-dot-com>
>>Date: Thursday, August 5, 2004 9:08 am
>>Subject: Re: New Maxwell on ebay
>>
>> > Original poster: "BunnyKiller" <bunikllr-at-bellsouth-dot-net>
>> >
>> > its a 35XXX series cap   thats the one you want for tesla coil use
>> >    I
>> > have 4 of them on mine and have no problems in 5 yrs...
>> >
>> > the 37XXX series are used for slow pulse units   ....
>> >
>> > go for it...   when you get it make sure it has oil in it...
>> >
>> > Scot D
>> >
>> >
>> >
>>
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