The Turn Of The Century Electrotherapy Museum
5" Sparks: Tesla Oscillator with approx 35W of input power
Setup with 38" x 48" masonite posters in the background. Note the photo in the left background is approximate actual size of the real apparatus.
The Pancake coils I have chosen, while side-by-side, are nearly the same physical size as those Tesla used back-to-back in his arrangement.
The electromagnet coil I've used is much smaller though, I will try and replicate the large one in the photo.
To the right is another collection of "Tesla's Tesla Coils". We have 5 of these large posters that we use for lectures.
Here are the components!
Click here for an updated movie!
The interrupter mechanism was ceased a bit, but I managed to loosen it enough to have it nearly open to nearly closed. Depending on the
setting of the interrupter, the sparks appear from 4 - 5" on top of the unit. Even with the dischargers removed, phantom streamers issue from
the terminals a few inches perpendicular to the terminals.
I used a modern cap. .5 mfd.
Check out the size of the core on the electromagnet!
The 3600 turn secondary coils and 24 3/4 turn primary coils are embedded in beeswax. Finished coils are not more than 6.5" OD!
Note the bright sparks in the middle of the sparks!
(C) Jeff Behary, 2007, 2008