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Registered Member #54655
Joined: Thu Mar 19 2015, 05:56PM
Location: BC, Canada
Posts: 82
A few years ago when I was running my dual MOT magnifier, a 5 foot streamer hit the edge of a window and the whole window shattered but stayed in place completely full of cracks. I've never heard of a tesla coil shattering windows before. Has anyone ever had this happen before?
Registered Member #4362
Joined: Sat Jan 21 2012, 03:44AM
Location: Texas
Posts: 98
One night I was running a version of Steve Wards Mini sstc. I had an old laser pointer (the cheap ones you buy to play with cats) Just for fun i placed it on top of the toroid them turned on the coil. It fired right up and had a visible red dot on the wall. No batteries were in it. I have seen LEDs glow bright while near the coil but they had to be held so as to provide a path for the RF.
Would be a cool disco ball effect if you glued 100s of cheap laser diodes to the toroid.
Registered Member #54503
Joined: Sun Feb 22 2015, 10:35PM
Location: New Zealand
Posts: 288
My computer still freezes quite often with my tesla coil running, have no idea how to shield the USB properly. I wound a few turns around a toroid on the usb cable to the midi controller, and helped a little.
Not helpful when im trying to play tunes through it!
Registered Member #4362
Joined: Sat Jan 21 2012, 03:44AM
Location: Texas
Posts: 98
Older topic but I found another strange effect while operating a medium sized SSTC. I was curious about voltages at the base of a secondary coil to ground. I placed a 1157 bulb in series with the base to the mains ground lug. The bulb lights up nice and bright. I would estimate 550Ma of current on base to ground.
Current and voltage change in an active secondary coil but resistance stays the same ? So high voltage low current at the breakout and low voltage high current at the base ? Do bipolar coils overheat the center secondary windings ? Hmmm..
Registered Member #2099
Joined: Wed Apr 29 2009, 12:22AM
Location: Los Altos, California
Posts: 1716
Applause for the experiment. Your opto coupled ammeter, responsive to RMS value of AC or DC current. :) Any current at that point, which does not make it to the top of secondary coil, needs to go somewhere else -- I guess into capacitance between coil and the rest of the world.
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Add your strangest TC phenomenon here
