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RE: [TCML] Did anyone get this: Design for a classic mini-TC (fwd)
The gmail problem with list postings is explained here:
http://www.python.org/cgi-bin/faqw-mm.py?req=show&file=faq02.008.htp
Chip
On Tue, 15 Apr 2008, Rich Schmuke wrote:
> I have a strange problem with my emails, your ISP might do the same to you.
> When I send to a group, this one or any one on Yahoo my ISP don't not return
> it to me. I wont be able to see this posting but if any one replies to me I
> get the reply. My ISP quit handling the mail and out sourced it to Gmail. I
> still have a Wildblue email address but Gmail handles it. I have just
> learned to live with it and trust that my emails are posted.
>
> Rich , from the middle of Missouri
>
> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
> Of Bert Hickman
> Sent: Tuesday, April 15, 2008 9:08 PM
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] Did anyone get this: Design for a classic mini-TC (fwd)
>
> Hi Chip,
>
> I did indeed see this post from Dr. R.
>
> However (as with a couple of of my earlier postings) I still don't seem
> to be receiving copies of postings that I make. This just happened again
> - I never saw a copy of my posting to Vladi yesterday. However, the
> message shows up in the archive and Vladi clearly received it. When
> messages are forwarded from the Pupman mail server, is it possible that
> the originator's email address is being suppressed?
>
> Bert
>
> Chip Atkinson wrote:
> > I know I got it and I know it made it to the archives but did anyone
> > outside the mail server get this one?
> >
> > Chip
> >
> > ---------- Forwarded message ----------
> > Date: Sun, 13 Apr 2008 17:15:44 -0700
> > From: DC Cox <resonance@xxxxxxxxxxxx>
> > Reply-To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> > To: Tesla@xxxxxxxxxx
> > Subject: [TCML] Design for a classic mini-TC
> >
> > I have completed a "classic style" design for a nice mini-coil. It is
> > portable, light-weight, uses only 3 Amps at 120 vac, and is ideal to
> > transport to schools, Boy-scout meetings, etc., for demonstrations.
> >
> > It uses a 6500 VAC, 20 mA nst that has been modified (some shunts
> removed)
> > for operation at 50 mA intermittant duty. Also, uses 12 pcs of 0.22 1600
> > VDC MMCs in series (.0183 uF total), and a commercial high freq welder
> type
> > sparkgap (2 gaps) that is blower cooled (500 cfm). It can be constructed
> in
> > a small 13.5 x 9.5" wooden box, antique looking, and I used a 3/8 inch
> thick
> > granite tile (local flooring shop) cut to fit with 1/2 inch overlap all
> > around (again, for the antique look. Blower is fitted to one end with a
> > vent on one sidewall and exits out base vent for airflow.
> >
> > I will be winding up a series of the secondary coils on my lathe. We are
> > using a fine 36 AWG wire with winding length of 8.75 inch x 2 inch OD on
> a
> > 9 inch long vertical tube. The sec resonants at 512.4 kHz using a 2 1/2
> inch
> > brass ball (McMaster-Carr or O.W. Langdergren). I could probably get a
> > discount on the 2 1/2 inch spheres if we all ordered them at the same time
> > in a bulk order. Spark output should be in the 5-6 inch range (may exceed
> > this performance). The complete design was done in JAVATC. Uses a 5.6
> turn
> > primary of GTO silicone wire or it could be #6 AWG bare copper ground wire
> > slightly spaced. Coeff of coupling was set at 0.122 for good energy
> > transfer and performance.
> >
> > If anyone is interested in purchasing some of these coils for their own
> > mini-coil, I will be running a group of them in May. I will furnish the
> > complete schematic with the coil. I also had to order the 75 pc minimum
> on
> > the caps, so I will have extra caps available. I can also furnish the
> high
> > freq welder spark gaps. You would mount them on some small insulators or
> > fabricate simple plastic stand-off insulators.
> >
> > If there is enough interest I may offer a complete kit including coil,
> > sphere, spark gaps, caps, and even the xmfr. I get a price reduction on
> the
> > xmfrs as I order them in bulk for my large Van de Graaff generators. All
> > components new, not used.
> >
> > If John Feau is still occassionally doing some toroid and sphere spinning,
> > perhaps he might be interested in doing a 2.5" copper sphere or perhaps a
> > small .75 x 2.5 inch toroid for these babies. The copper or brass look
> adds
> > to the antique look of the finished unit. I used some special antique
> sand
> > blasted copper laminate on the exterior of my boxes.
> >
> > Please contact me off-list if you need the coil. I will also be selling
> the
> > completed coil with box, all parts installed, wired, and tested.
> >
> >
> > Dr. Resonance
>
>
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