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opened pulse cap
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From: D.C. Cox [SMTP:DR.RESONANCE-at-next-wave-dot-net]
Sent: Saturday, March 21, 1998 9:15 PM
To: Tesla List
Subject: Re: opened pulse cap
to: Jim
Contact Maxwell Caps in San Diego. I toured their facility a few years
back. They use a special type of solder to solder the aluminum and a huge
hand-held soldering iron (old fashioned type) that was heated with a small
blow torch. Talk to Bob Cooper and perhaps he can steer you in the right
direction to get the solder materials they use.
Missed you Friday night at Greg's big show -- please take a few polaroids
of the caps with some type of physical reference like a person sitting next
to them and send to me with measured dimensions and weight. I am still
interested -- how many do you have??
DR.RESONANCE-at-next-wave-dot-net
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> From: Tesla List <tesla-at-pupman-dot-com>
> To: 'Tesla List' <tesla-at-pupman-dot-com>
> Subject: FW: opened pulse cap
> Date: Thursday, March 19, 1998 10:13 PM
>
>
> ----------
> From: Homer Lea [SMTP:HomerLea-at-aol-dot-com]
> Sent: Thursday, March 19, 1998 1:06 AM
> To: tesla-at-pupman-dot-com
> Subject: opened pulse cap
>
> >I finally got one of my 60 kv 1,8 uf caps open. It is 12 sections each
about
> 1 1/2 x 10 x 26 inches (not measured), all wired in parallel so .15 uf
per
> section.
>
> I just unwound the first couple layers. The cap is made of strips of foil
> spaced apart with a second layer spaced alternately to give the effect of
> several caps in series. This double layered arrangement is then rolled up
in a
> flattened coil. I will try to illustrate
> con__________ ___________ ___________ ____________
> _____________ ____________ ____________
> _________con
>
> Only the end two strips have an electrical connection (marked "con"). The
ends
> are soldered with some kind of aluminum solder to tinned copper strips.
Does
> anyone know how to connect the end foil back after rerolling part of the
> capacitor. Not only is it covered with oil but aluminum is hard to
solder.
> Would some kind of compression connection be good enough? More news as I
> progress.
>
> jim heagy
>