Colorado Springs equipment

From:  Alfred A. Skrocki [SMTP:alfred.skrocki-at-cybernetworking-dot-com]
Sent:  Sunday, April 19, 1998 4:49 PM
To:  Tesla List
Subject:  Re: Colorado Springs equipment

On Thursday, April 16, 1998 8:18 AM Sandy
[SMTP:DamDeName-at-aol-dot-com] wrote;

> Hi all ,
>     I've a couple of questions 
>                 In viewing a photo of the lab in Colorado Springs I
> observed what appeared to be humongus ! ^ !  batteries --- 
>    Was Tesla using the Mercury Controllers at the lab as well
> as the mains power ?? --- 
>     I understand  that  the mains frequency  was 400 Hz ???
>      400 Hz mains could make life a bit easier in some respects -- no?

There were no batteries used on Dr. Tesla's Colorado Springs coil!

>      Has there been much interest in the inductive " kick "  source  of 
> primary power by anyone ?? ---- 

Yes Sandy, I have talked on the subject on numerous occasions. The idea is 
that when a large inductance has it's supply voltage cut off suddenly the 
collapsing magnetic field develops a high counter E.M.F. which is then used 
to drive the Tesla coil. This is also the principle of the handheld Tesla 
coils used for vacuum testing and the old "violet-ray" coils. Below is an 
ASCII drawing of the layout.
                                      ) S
                 VG ____  _|_         )
                      | | ___C        )P
                     #( |__|__________)
                   C #(    |
                   O #(    |
                   I #(    |
                   L #(    |
                      |    |
                     AC or DC

You have an iron core coil connected at one side of it's windings to 
the line. The other side of the coil connects to a vibrating armature 
almost identical to those found on the old induction coils. The 
stationary contact of the interrupter is connected to the Tesla coil 
primary P, the other side of the primary is connected to the Tesla 
coil secondary S. the primary also connects to the moving contact of 
the interrupter and the capacitor C is across the vibrating spark gap 
VG. There should be an adjusting screw that pushes the moving 
armature of the vibrating spark gap closer to or further away from 
the stationary contact. Instructions for building several different
size Tesla coils driven by a "kicking coil" are described in 
Thomas Stanley Curtis's "High Frequency Apparatus" 1916 
(reprinted by Lindsay Publications 1988)in chapter VIII 
"Kicking Coil Apparatus".


                                      \\  ~ ~  //
                                       (  -at- -at-  )
                                   Alfred A. Skrocki
                      Visit my Do-It-Yourself Aquarium WEB page at;
                                     .ooo0   0ooo.
                                -----(   )---(   )-----
                                      \ (     ) /
                                       \_)   (_/