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Re: Capacitor voltage - AC or DC
- To: tesla@xxxxxxxxxx
 
- Subject: Re: Capacitor voltage - AC or DC
 
- From: "Tesla list" <tesla@xxxxxxxxxx>
 
- Date: Sat, 27 Aug 2005 17:16:02 -0600
 
- Delivered-to: chip@pupman.com
 
- Delivered-to: tesla@pupman.com
 
- In-reply-to: <000201c5ab3b$11451f50$7800a8c0@perseus>
 
- Old-return-path: <vardin@twfpowerelectronics.com>
 
- References: <000201c5ab3b$11451f50$7800a8c0@perseus>
 
- Resent-date: Sat, 27 Aug 2005 17:18:41 -0600 (MDT)
 
- Resent-from: tesla@xxxxxxxxxx
 
- Resent-message-id: <rDWgBD.A.2o.MTPEDB@poodle>
 
- Resent-sender: tesla-request@xxxxxxxxxx
 
Original poster: Terry Fritz <vardin@xxxxxxxxxxxxxxxxxxxxxxx>
Hi Dirk,
At 01:11 PM 8/27/2005, you wrote:
Hello all
I am building my first coil using a NST 15kv/30mA. With all the 
research, I have been seeing people use these MMC capacitor arrays 
but I have a question. Usually all these capacitors, that coilers 
are using are DC rated but isn't there supply voltage AC? Does this 
affect the capacitor?
In our particular case, we use the higher DC rating.  Since we do not 
use our coils 8000+ hours per year, the decreased life due to high AC 
voltages will not matter to us.
I know from my some of my other little projects involving DC(5-12V) 
that reversing the polarity on a cap results in failure.
They are "polarized caps that have a definite (+) and (-).  The film 
caps we use do not care about polarity.
http://www.hot-streamer.com/TeslaCoils/MMCInfo/mmcinfo.htm
Cheers,
        Terry
Thanks,
Dirk