Re: New VTTC (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Mon, 6 Aug 2007 10:46:21 -0500
From: resonance <resonance@xxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: New VTTC (fwd)


We buy it at a large local plastics wholesale supplier.  You could order it 
from them.  Acryfab in Wisconsin.  Tel is 800-747-2279.  Ask for Ralph and 
tell him DC sent you.


Dr. Resonance
Resonance Research Corp.
www.resonanceresearch.com


----- Original Message ----- 
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Monday, August 06, 2007 7:43 AM
Subject: Re: New VTTC (fwd)


>
> ---------- Forwarded message ----------
> Date: Sun, 5 Aug 2007 22:30:30 -0700
> From: James Zimmerschied <zimtesla@xxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: Re: New VTTC (fwd)
>
> DC, thanks for the information on how you build primary forms for these 
> coils. I have not seen a source for polystyrene sheet. Where do you obtain 
> it?
>
> I doubt that I will be able to travel to Wisconsin for the Teslathon ( I 
> live in Washington state) but thanks for the invite. I am sure those that 
> can attend will enjoy it. I do like getting the videos when they come out.
> Jim
>
>
>  ----- Original Message ----- 
>  From: Tesla list<mailto:tesla@xxxxxxxxxx>
>  To: tesla@xxxxxxxxxx<mailto:tesla@xxxxxxxxxx>
>  Sent: Sunday, August 05, 2007 8:33 AM
>  Subject: Re: New VTTC (fwd)
>
>
>
>  ---------- Forwarded message ----------
>  Date: Sat, 4 Aug 2007 23:46:54 -0500
>  From: resonance <resonance@xxxxxxxxxxxx<mailto:resonance@xxxxxxxxxxxx>>
>  To: Tesla list <tesla@xxxxxxxxxx<mailto:tesla@xxxxxxxxxx>>
>  Subject: Re: New VTTC (fwd)
>
>
>  PVC can have tracking problems due to its ability to hold water molecules 
> to
>  its surface.  Acrylic tube is perhaps a better choice, but expensive.  I
>  favor winding the primary on some 1/4 inch dia. G-10 rods (usually 8-10
>  pieces in a circle) and then using a "shield" consisting of 6-8 wraps of
>  1/8th inch thick polystyrene.  The PS is cut into 48 inch long pieces for
>  nearly continuous wrap.  You can make a seam if your overlap approx 4-5
>  inches. Go about 1/2 way up the coil with this shield.  PS does a great 
> job
>  of holding off RF currents that tend to track even further than 60 Hz AC
>  currents.  VTTCs usually operate at higher frequencies than classic RSG
>  coils which helps exacerbate the tracking problems.
>
>  If you haul your 833 coil to our fall TeslaFest I have a 3,000 Volt, 1200 
> mA
>  plate transformer we could try on your coil.  That should provide all the
>  drive you need to get a "full power" operation, at least for testing.
>
>
>
>  Dr. Resonance
>  Resonance Research Corp.
>  www.resonanceresearch.com<http://www.resonanceresearch.com/>
>
>
>  ----- Original Message ----- 
>  From: "Tesla list" <tesla@xxxxxxxxxx<mailto:tesla@xxxxxxxxxx>>
>  To: <tesla@xxxxxxxxxx<mailto:tesla@xxxxxxxxxx>>
>  Sent: Saturday, August 04, 2007 10:12 PM
>  Subject: New VTTC (fwd)
>
>
>  >
>  > ---------- Forwarded message ----------
>  > Date: Fri, 3 Aug 2007 23:04:31 -0700
>  > From: James Zimmerschied <zimtesla@xxxxxxx<mailto:zimtesla@xxxxxxx>>
>  > To: Tesla <Tesla@xxxxxxxxxx<mailto:Tesla@xxxxxxxxxx>>
>  > Subject: New VTTC
>  >
>  > Hello to list members, Lately I have been spending time and money 
> putting
>  > together my first vacuum tube coil. I wanted to do this type of project
>  > for a long time but it took incentive such a Cameron Prince's and Chris
>  > Hooper's results that made me go ahead with the project.
>  >
>  > I used the design on Steve Ward's website pretty much as a cookbook 
> design
>  > (thanks Steve) with some added help from Brett Miller and John Freau. I 
> am
>  > using the 833C Taylor tube from RF Parts. Many of the other items I had 
> in
>  > my spare parts so that helped some on cost.
>  >
>  > I made use of a bunch of Sangamo mica caps in a MMC arrangement for the
>  > tank capacitor. I have a staccato board but haven't go that working 
> yet.
>  > My current best spark length is around 18". This is below the 
> performance
>  > that others have achieved but I am confident that there is room to
>  > improve. I will be adding a lexan shield at the top of the primary form 
> as
>  > others have done. I took a heavy secondary to grid coil arc pushing the
>  > grid coil location upward. The arcs from this coil burn through PVC
>  > voraciously in the few seconds of breakdown that occurred.
>  >
>  > A few specifications:
>  > secondary is 900 turns of #28 on a 4 inch PVC form.
>  > primary is 32 turns of #12 stranded on a 6.5" PVC form
>  > tank cap is 0.002uF
>  > grid leak resistor is 5K Ohms (100W)
>  > grid leak cap is 0.002uF ceramic disks
>  > one MOT with DC doubling
>  > three micorwave oven caps (~4uF)
>  > grid coil is 25 turns of #20
>  >
>  > I was happy to be able to get this going without too much problem. 
> Thanks
>  > to the VTTC pioneers and those who willingly share their knowledge.
>  >
>  > I tried to send some photos but they were apparently blocked. If the
>  > moderator could let me know the current procedure, I could get some 
> photos
>  > posted. Jim Zimmerschied
>  >
>  >
>  >
>
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>