RE: I need Tesla coil HELP PLEASE

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

Original poster: "Lau, Gary by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Gary.Lau-at-compaq-dot-com>

Robert, I have to disagree.  When using a 15/30 NST, a .005 uF cap is just
about mains-resonant and a perfectly reasonable value to use.  Ten times
that, or .05 uF, would be much too large for a 15/30 to power.

Back to the original question, I would have to ask just what kind of cap
was used in the suspect MMC?  No voltage rating, dielectric type, or vendor
part number was mentioned.  I assume that the .0053uF was the target value
of the completed MMC, and that the individual caps were rated 0.15uF each?
(0.15/28=.0053)

Gary Lau
MA, USA



 -----Original Message-----
From: 	Tesla list [mailto:tesla-at-pupman-dot-com] 
Sent:	Tuesday, April 16, 2002 3:19 PM
To:	tesla-at-pupman-dot-com
Subject:	Re: I need Tesla coil HELP PLEASE

Original poster: "rheidlebaugh by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<rheidlebaugh-at-zialink-dot-com>

Andrew:  I am conserned with your capacitor size. o.0053 uF. I do not think
any of my coils would function with that small of a cap. My coils nead 10x
that size. I use both 15/30 and 15/60 NTS  to power my coils. Check your
capacitor size to see if you posted it correctly. 5nF is quite small.
    Robert  H

> From: "Tesla list" <tesla-at-pupman-dot-com>
> Date: Mon, 15 Apr 2002 23:04:50 -0600
> To: tesla-at-pupman-dot-com
> Subject: Re: I need Tesla coil HELP PLEASE
> Resent-From: tesla-at-pupman-dot-com
> Resent-Date: Mon, 15 Apr 2002 23:15:23 -0600
> 
> Original poster: "Chip Atkinson by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <chip-at-pupman-dot-com>
> 
> I think the first thing then is to try to get the mmc cap to work.  Find
> out what the problems are before proceeding with another one.
> 
> A lot of the trouble you may be having could be due to your soldering
> technique.  Also, if your soldering iron/gun is too small, you'll end up
> melting your components before you get the wires hot enough to solder.
> You should make sure the solder wets the ends of the wires.  Also, do you
> have them wired properly?  If you made a mistake and accidentally wired a
> cap to itself and essentially broke the string, you won't have a working
> cap. 
> 
> The MMC caps are pretty darn good.  I'd suggest getting it working rather
> than using doorknob caps.  They have a rather bad reputation for extended
> usage.  
> 
> Have you tested the cap separately, out of the tank circuit?
> 
> Chip
> 
> On Mon, 15 Apr 2002, Andrew Robinson wrote:
> 
>> Ive tried the following: Plate, bottle, and MMC capacitor. All have failed.
>> My newest cap was a hundred dollar MMC and it didn't work! It looks like
>> crap. Hint, im not great at using an iron! What do I do? Im looking into
>> building a capacitor from doorknob caps so the connections will be easier.
>> Her is the specs of the current cap:
>> 
>> 0.0053 uf
>> 28 caps per string
>> 1 string
>> 15/30 trany
>> 
>> If you can help me, please e-mail me back at this address- Poofyman-at-msn-dot-com
>> 
>> Thanks, Andrew
>>