Herrick's s.s. documentation

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Kennan C Herrick by way of Terry Fritz <twftesla-at-qwest-dot-net>" <kcha1-at-juno-dot-com>

With the kind indulgence of Our Moderator, I re-post my prior offer of
documentation:
 
I now have a set of drawings available for my prototype machine.  Refer to my
posting of 2 June 01, "Herrick's goofs/s.s. documentation".  I'll provide one
set, as noted, for US$30 post-paid in the U.S. or US$35 post-paid if to be
mailed
overseas.
 
Here's the list.  It's a complete list (from item 1.1) so note that the items
in curly brackets are >not< supplied with the offered documentation package.
 
1.  Document List
 
1.1  This document [the circuit description, etc.]; (KCH ref. YW-General)
1.2  Drive Scheme; TCG44-L2
1.3  Primary Interconnection Wiring; TCG44-2T
1.4  Schematic Drawing, Control Circuit; TCG-CK2B
1.5  Schematic Drawing, Main Circuit; TCG-CK1A
1.6  Schematic Drawing, Pre-driver & Wand; TCG-AUX
1.7  {Parts List; (KCH ref. F.E. database THUNDER)}
1.8  {Artwork/fab/assy Drawing, Top Assy & PC1; TCG-PC1 (as modified)}
1.9  Top Assembly Drawing, TCG-PUB; 1 sheet reduced and edited from TCG-PC1 and
not entirely as-built
1.10  {Artwork/fab/assy Drawing, PC2; TCG-PC2 (as modified)}
1.11  Fab/Assy Drawing, Control Box; TCG-CTL3
1.12  {U.S. Patent #6,069,413 (can be viewed at and/or printed from
<http://www.patents.ibm-dot-com>http://www.patents.ibm-dot-com.)}
1.13  {Photographs of the prototype assembly (See 
<http://hot-streamer-dot-com/temp/KCH_Tcg1.jpg>http://hot-streamer-dot-com/temp/KCH
_Tcg1.jpg, 
http://hot-streamer-dot-com/temp/KCH_Tcg2.jpg and
<http://hot-streamer-dot-com/temp/KCH_Tcg3.jpg>http://hot-streamer-dot-com/temp/KCH
_Tcg3.jpg).}

Item 1.1 is 16 pp, 8 1/2" x 11"; the rest, quantity 7, are each an 11" x 17"
drawing, CAD-prepared.
 
As to 1.13... The Tcg1 image is, of course, a double exposure as is Tcg2: a
conventional tungsten-illuminated shot of the coil not running, & with me in it
in Tcg2, and then a 2nd exposure in the dark for 6-8 seconds with the coil
running at perhaps 6 or 8 sparks/second.
 
Tcg3 shows the primary assembly with the secondary taken off.  Unfortunately,
my son scanned the film from the wrong side so just imagine it reversed.
 
Each copper-pipe heat-sink mounts on a power MOSFET (an IRFP460LC but that
would be replaced in new orders with a 460 having another suffix; the LC is
discontinued).  The inductors (4 are used) are in the switching
current-supplies for charging the storage capacitors.  The little rectangular
circuit board is the pre-driver for the MOSFET drivers.  All the primary
cabling is merely 18 ga. "speaker wire"; it constitutes 2 equivalent primary
turns.  The knobs at the corners are for leveling but they're not really
necessary, I find.  The small panel with the switch-knob provides test signals;
it is not documented, merely connecting to the existing ribbon-cabling.
 
The storage capacitors for the primary "current rings" are on the undersides of
the pie-shaped boards and the driver/power-supply boards plug in vertically to
those boards, underneath; the edges of two of them can just be seen.
 
The control box containing the 5V-logic, l.v. power and mains-rectifier, is at
the front, below the mounting board.  There is a lifting eye inside the PVC
secondary-support pipe at the center.
 
I now plan to finish up my (extensive) p-c artwork changes and incorporate 2
more 12-MOSFET boards to make up the full compliment of 6 assemblies.  That
will boost my primary current 1/3 more & then we'll see what that will do for
the spark.  When & if I get that done I'll offer a diagram of the revised
primary wiring.
 
I am at this time offering neither items 1.7, 1.8 or 1.10 nor 1.12 or 1.13; the
former are not totally current, some incorporate artwork that needs to be
changed, and 1.8 alone incorporates 26 CAD "layers".  Items 1.12 and 1.13 are
available on-line as noted. Perhaps some day, having finished up the artworks
and all, I can offer those drawings and even finished circuit-boards if there's
a demand.
 
The documentation I provide is sufficient for a person skilled in the art of
utilizing transistors, integrated circuits, their ancillary components, etc.,
plus the usual things involved in making such electro-mechanical assemblies, to
successfully build a Tesla coil following my design.  Admittedly, it would be a
whole lot easier with ready-made printed circuit boards, as well as with a
detailed parts list.  If & when there is some serious interest expressed, I
shall try to see to that.
 
As to the patent, and to certain admonitions that I put on some of my
drawings... Anyone in the U.S. may make a coil using the information in that
patent and in my drawings if it is not to be used in commerce.  And anyone at
all may do such and sell as many of them as possible for obscene profit outside
the U.S....and good luck to them.
 
Send a check or int'l money order in U.S. dollars, upon receipt of which I will
send the printed drawings via 1st class mail.  Be sure to include your address!
 
Ken Herrick
2160 Mastlands Drive
Oakland, CA 94611 USA