[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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
> 
> 
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
> 
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
> 

_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla