Tour : click picture below for previous

Back to Mike's Electric Stuff

Click picture below for next

wpe37.jpg (12045 bytes)uktes.jpg (1687 bytes)
Sparks of fire!

High voltage and fire... what more could anyone want...???


wpe26.jpg (379511 bytes)I knocked up this very "quick & dirty" 125KV marx generator to test some new solid-carbon resistors I'd bought to replace the failing ones in my big 1MV "Marx Three".

After some initial testing, I started playing, looking for possible ways to capture the patterns of sparks as they tracked across surfaces.

I tried a few things, like a wax coating, but with pretty poor results.


wpe33.jpg (266319 bytes)Then I tried some laser printer toner, and got an unexpected, although not entirely unwelcome result...

I think what happens is that the shockwave of the spark throws the toner into a fine dustcloud, which then ignites, in a rather impressive flame-burst.

wpe12.jpg (281508 bytes)The remains of the toner on the plastic surface - charred central trail, surrounded by clean area cleared by the shock wave from the spark and subsequently burnt.

wpe13.jpg (384732 bytes)

wpe23.jpg (421428 bytes)

wpe9.jpg (457004 bytes)

wpe2C.jpg (259317 bytes)

wpe2D.jpg (286112 bytes)

wpe2E.jpg (301512 bytes)

wpe32.jpg (40864 bytes)

wpe30.jpg (19927 bytes)


wpe37.jpg (12045 bytes)uktes.jpg (1687 bytes)


Click picture above for Previous

Back to Mike's Electric Stuff

Click picture above for next