Sparks through an inductance: Jacob's ladder?
By the way, while I was shorting my SMPS, I noticed that:
- shorting it through a 1 m long piece of wire I got a solid and loud BANG
- shorting it though a 20-30 m long piece of wire I got a loud BUZZING spark,
that could be extended (once begun) in length up to 10-15 cm! It was a real
Jacob's ladder what I had there, the spark rising up slowly (better to say it
was a FLAME). It was like the flame you get by shorting a NST, but only much
Recall that my SMPS was, of course, all the time trying to recharge the
capacitor, even during the spark time. My top voltage was set to about 7 kV.
This maybe suggest that those interested in building a nice Jacob's ladder may
reach a better result by adding series inductance (to add to the
inductance). I had plenty of voltage and current, but it was only the series
inductance that made the flame effect appear.