Re: [TCML] Beginning Tesla Design

[DC Cox <resonance@xxxxxxxxxxxx>]

I stock MMCs

Dr. Resonance




On Sat, Jan 1, 2011 at 7:38 PM, Taylor Skidmore <balt11t@xxxxxxxxx> wrote:

> I'm not really sure how to respond to that, other than that my MMS is being
> supplie by a friend. I don't want this to be as big as possible, but rather
> a simple, small, economic design. I have approximately $45 to make this,
> not
> including my NST.
> On Dec 31, 2010 12:27 PM, "Brandon Garretson" <garretsontech@xxxxxxxxx>
> wrote:
> > Your primary cap looks a little small and close to resonant size, try to
> get
> > it up just over 9nf like TeslaMap recommends for a static gap.
> > Also try to build it to handle at least 1.5 to 2 times your NST secondary
> > voltage as the caps you will likely use are rated for DC.
> > My 12/60 powered coil MMC is rated over 30kv.
> >
> >
> > On Thu, Dec 30, 2010 at 10:05 PM, Futuret <futuret@xxxxxxx> wrote:
> >
> >> Taylor,
> >>
> >> The spark gap is the heart of a Tesla coil in a sense, so it's a good
> >> idea to build something with good quenching. I assume you'll begin
> >> by using a static gap. Gary Lau's vacuum gap or pressure gap is
> >> an excellent design. The TCBOR/Richard Quick gap works well too.
> >>
> >>
> >> If you use a PFC cap on the NST be sure it's not the motor start
> >> electrolytic type which can explode. A motor *run* cap is OK
> >> (the type in a metal can... not electrolytic). It's not really necessary
> >> to use a PFC cap. Using such a cap will just reduce the input current
> and
> >> improve the power factor.
> >>
> >> You'll probably want to include a safety gap and "Terry Filter" also, to
> >> protect the NST. Gary Lau has some good comments at his website
> >> regarding how to connect the various grounds to reduce electrical
> >> kickback into the house wiring.
> >>
> >> Cheers,
> >> John
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> -----Original Message-----
> >> From: Taylor Skidmore <balt11t@xxxxxxxxx>
> >> To: tesla <tesla@xxxxxxxxxx>
> >> Sent: Thu, Dec 30, 2010 9:32 pm
> >> Subject: [TCML] Beginning Tesla Design
> >>
> >>
> >> My name is Taylor Skidmore and recently I decided that I wanted to make
> >>
> >> a Tesla coil. After spending hours reading over the internet, I decided
> >>
> >> that I was ready to craft my own, but I was wondering if you could
> >>
> >> simply look over my design and put in any comments you might have. I did
> >>
> >> make this with TeslaMap, as my experience in electronics did not allow
> >>
> >> me to attempt to make my own calculations, even though I did try. If
> >>
> >> there is something wrong, could you please help me find the mistakes?
> >>
> >>
> >>
> >> Thanks,
> >>
> >> Taylor Skidmore
> >>
> >>
> >>
> >> 12/30/2010
> >>
> >>
> >>
> >> --- Power Supply ---
> >>
> >> NST V Out 12 kV
> >>
> >> NST I Out 30 mA
> >>
> >> Input V 120 V
> >>
> >> Input F 60 Hz
> >>
> >> NST VA 360.0
> >>
> >> NST Watts 371.4 W
> >>
> >> NST Impedance 400 Kohms
> >>
> >> Max Arc 32.8 in
> >>
> >> NST PFC Cap 66.3 uF
> >>
> >>
> >>
> >> --- Primary Capacitor ---
> >>
> >> Your Cap 5.88 nF
> >>
> >> Resonate Cap 6.6 nF
> >>
> >> LTR Static Cap 9.3 nF
> >>
> >> LTR Sync Cap 12.6 nF
> >>
> >>
> >>
> >> --- Secondary Coil ---
> >>
> >> Single build magnet wire
> >>
> >> Wire AWG 22 AWG
> >>
> >> Wire Length 1,061.3 ft
> >>
> >> Wire Weight 2.06 lbs
> >>
> >> Wire Resistance 17.2 ohms
> >>
> >> Secondary Height 24 in
> >>
> >> Secondary Diameter 4.5 in
> >>
> >> H/W Ratio 5.3 : 1
> >>
> >> Turns 901.4
> >>
> >> Secondary L 14.22 mH
> >>
> >> Secondary C 9.22 pF
> >>
> >>
> >>
> >> --- Top Load ---
> >>
> >> Overall Diameter (1) 18 in
> >>
> >> Ring Diameter (1) 4.5 in
> >>
> >> Overall Diameter (2) (optional) in
> >>
> >> Ring Diameter (2) (optional) in
> >>
> >> Sphere Diameter unknown
> >>
> >> Top Load Adjust 95 %
> >>
> >> Top Load C 21.39 pF
> >>
> >>
> >>
> >> --- Top Load + Secondary ---
> >>
> >> Resonate F 241.20 kHz
> >>
> >>
> >>
> >> --- Primary ---
> >>
> >> Wire Diameter .25 in
> >>
> >> Wire Spacing .25 in
> >>
> >> Hole Diameter 6.5 in
> >>
> >> Coil Angle unknown
> >>
> >> Coil Adjust 95 %
> >>
> >>
> >>
> >> Needed primary inductance with:
> >>
> >> Your Cap 46.52 uH
> >>
> >> Resonate Cap 41.25 uH
> >>
> >> LTR Static Cap 29.47 uH
> >>
> >> LTR Sync Cap 21.71 uH
> >>
> >>
> >>
> >> --- Design Notes ---
> >>
> >> No notes
> >>
> >>
> >>
> >>
> >>
> >> _______________________________________________
> >>
> >> Tesla mailing list
> >>
> >> Tesla@xxxxxxxxxx
> >>
> >> http://www.pupman.com/mailman/listinfo/tesla
> >>
> >>
> >>
> >>
> >>
> >> _______________________________________________
> >> Tesla mailing list
> >> Tesla@xxxxxxxxxx
> >> http://www.pupman.com/mailman/listinfo/tesla
> >>
> > _______________________________________________
> > Tesla mailing list
> > Tesla@xxxxxxxxxx
> > http://www.pupman.com/mailman/listinfo/tesla
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
>
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