Re: [TCML] C D capacitors

[Gary Lau <glau1024@xxxxxxxxx>]

I don't think it's correct to suggest that specifying the right
dielectric is all one needs to get a useful cap.  True, the dielectric
should be polypropylene, but eBay is full of HV polypropylene caps
that are not suitable for TC use.  The other critical thing is how the
cap is built - whether the plate terminations will support the very
high pulse currents encountered in a TC.  This is not a point that we
can be flexible on.

Regards, Gary Lau
MA, USA

On Sat, Apr 3, 2010 at 5:17 PM, Bill Noble <william_b_noble@xxxxxxx> wrote:
> they are long gone now, but I was selling similar caps for $5 cents each a
> few years ago - I'll bet if you look around you can find them or something
> suitable in quantity pretty cheap - try ford electronics, for example
> (telephone, and ask for scott) - be flexible on what you want - you need
> quantity and the right dielectric - beyond that, everything else can be
> adjusted -
>
> --------------------------------------------------
> From: "robert massa" <massahbob@xxxxxxxxxxxxx>
> Sent: Saturday, April 03, 2010 8:40 AM
> To: <tesla@xxxxxxxxxx>
> Subject: [TCML] C D capacitors
>
>>     Can anyone advise me about where to buy some cornell dubilier 942
>> capacitors that everyone is using for mmc's.  Checked a couple online sites
>> and  $6.50 seems high, but I am new to this and don't know.  The salt water
>> caps work, but...!
>>  The info I,ve gleaned from this site is priceless.
>>
>> Thanks, Bob
>>
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