Finally, the lightning screen should not be confused
with the safe, silent, plasma-like luminous discs which
have become popular sales items at variety stores. On the
contrary, the project described herein involves electrical
potentials which are unforgiving to those who become
careless in its operation. The good news is that the
lightning screen is an alternating current capacitor with
little — if any — residual charge remaining on the plates
once it is shut down. Even so, experimenters must
disconnect it from the power line when it becomes
necessary to make adjustments or when not in use.
A remarkable person once declared, “No man is an
island unto himself.” That statement is certainly true in this
endeavor and I gladly acknowledge the valuable input and
assistance received from Steve Cole, Mitch Tilbury, and
Suzanne Gaeta. NV
1) An early form of capacitor invented in 1745 in Leyden
[Leiden], The Netherlands.
Harry Goldman can be contacted by
sending correspondence to
3 Amy Lane, Queensbury, NY 12804.
China PCB Supplier
(Prototype thru Production)
; 1-layer up to 30-layer
; Cost and quality
; On time delivery
; Dedicated service
; Instant Online Quote & Order
. . . . . Day and Night
No minimum quantity – 1 piece is welcome
Check our low price and save big $$$...
Because of the nature of this project and the spirit in which
it is intended, there is no formal
parts list. This project can be
made from used/collectable parts
wherever they may be available,
so it is up to the reader to gather
the necessary components. Here’s
a basic list of some of the items I
used in my build. The only item I
purchased new was the glass disc.
• 3/16" x 16" diameter
• 65 kV x-ray transformer
• Inductive reactance, 20 mH
• Large metal disc 16" diameter
• Small metal serving dish 8" D
• Metal tube 4 3/4" x 8"
• 1/4" ID copper tubing
• High voltage wire
• Electrical tape
• Etc., etc., etc.
August 2009 41