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Re: Gas Properties and Gap Cooling
to: John
At this power level the Lucite (acrylic) may not withstand the heat rise in
the secondary winding. Would suggest Extren as a better material to work
at this power level.
Also, note, we are having an open house on Monday evening, Oct. 12th, 7-10
PM, if you care to make the journey to Wis. Dells area.
DR.RESONANCE-at-next-wave-dot-net
----------
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: RE: Gas Properties and Gap Cooling
> Date: Monday, September 07, 1998 5:01 PM
>
> Original Poster: "Dr. John W. Gudenas" <jgudenas-at-admin.aurora.edu>
>
> OK John, by your request:
> Big Tube CW Coil initial specification.
> Plate Transformer: 6KV -at- 300ma
> Rectification: Full Wave Bridge with four 35KV stacks ,10 henery
inductance
> choke
> and 2mfd filter cap -at- 18KV
> Circuit Protection: 20KV 12 mmfd vacuum caps, rf chokes, safety gaps.
> Oscillator: Likely plate tuned Armstrong...now experimenting with
different
> grid feedback.
> Tube: One large ceramic used eimac # 8239/3cx3000f1, plate dissipation
3000
> watts
> Secondary Form: 8" by 32" Lucite cylinder with .125" wall.
> Primary: not as yet determined
> Frequency: not as yet determined
> I want to keep the frequency reasonably low and am using modeling to
> check various resonance combinations. I believe I can use a smaller tank
cap
> than you sparkers with the CW operation and my power supply...but still
in the
> design stage.
>
> "Old Faithful" my empirical test coil uses three 811A in parallel at
1.2KV
> -at-500 ma.
> All suggestions are welcome. I have been discussing issues with list
> members on
> an individual basis. When I get something significant done (probably
winter )
> I'll let ya know.
> John
>
> John W. Gudenas, Ph.D.
> Department Chair of Computer Science and Mathematics
> Aurora University, Aurora IL 60506
> Office: 630-844-5539 Fax: 630-844-7830
>
> -----Original Message-----
> From: Tesla List [SMTP:tesla-at-pupman-dot-com]
> Sent: Monday, September 07, 1998 3:40 PM
> To: tesla-at-pupman-dot-com
> Subject: Re: Gas Properties and Gap Cooling
>
> Original Poster: FutureT-at-aol-dot-com
>
>
> John,
>
> Can you tell us something about your large tube coil project, power
input,
> circuit, type and number of tubes, expected spark length, etc? Thanks,
>
> Yes, this list is the greatest!
>
> John Freau
>
>
>