Re: Hosfelt snubber caps

[Terry Fritz <twftesla-at-uswest-dot-net>]

Hi David,

	This is what I use for a 120 BPS 15/60 system.

http://216.160.168.190/TeslaCoils/MyCoils/BigCoil/big-MMC.jpg

Those are 0.056uF 1600 volt caps.

The caps are overloaded in current and voltage and the cap is perfectly
happy.  Your caps are a lot bigger than mine!!  I would think two string
with a 15/90 would be perfectly fine.  One string "may" be ok but I don't
know for sure...  But you simply are not going to get to 30 amps RMS with a
single NST...  Go for two stings and you'll be fine.

Cheers,

	Terry


At 10:50 PM 9/9/00 -0400, you wrote:
>In a message dated 9/9/00 12:17:37 PM Pacific Daylight Time, tesla-at-pupman-dot-com 
>writes:
>
><< So 7 caps at 3000 volts each will stand 21000 volts which is the peak
> rating for a 15kV NST.  Many of us actually run them well beyond that
> voltage rating with very few problems.  The caps are conservatively rated. >>
>
>
><<  Those big puppies will take like 15 amps RMS each!  Overheating them with
>an NST is simply not an issue. >>
>
>Hi Terry,
>
>Thanks for your responses to my questions regarding these caps.
>It sounds like they will perform admirably as Tesla caps. I just 
>wanted to ask one more question to verify what you were telling
>me. You said these caps were rated at 15 Amps RMS. Does that
>mean I could actually get away with running just a single string of
>these without overcurrent and overheating problems, assuming an
>NST power source? Of course, I would have to use more than one
>string to get the capacitance right, but I was just wondering. Also,
>if as few as 7 in series is safe for 15 KV, I may consider using 3 
>strings of 10 for 30 nF, as one of the other list members suggested,
>and save the other 30 for spares.
>
>Safe coilin' and Biggg Sparks,
>David R.
>