Re: [TCML] Beginning Tesla Design

[Futuret <futuret@xxxxxxx>]

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





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