In message <[email protected]>, dated Tue, 4 Nov 2014, Doug Smith <[email protected]> writes:

Tonight, I was able to create the same effect using EFT (electrical fast transient) pulses. Some power supplies can take a single EFT pulse and a microsecond to several microseconds later generate one or more EFT pulses, some larger that the stimulus one, embedded in corona discharges!

Is this some sort of St Elmo's Fire effect, i.e. RF energy scoots around 'trying to find' a pointed conductor to discharge from? I suppose 'several microseconds' can be understood in terms of the propagation of the energy being much slower in conductors than the speed of light.
--
OOO - Own Opinions Only. With best wishes. See www.jmwa.demon.co.uk
Quid faciamus nisi sit?
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK

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