Re: Measuring NST current

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "davep by way of Terry Fritz <twftesla-at-qwest-dot-net>" <davep-at-quik-dot-com>

>>>These open core and coil transformers already have one end of the HV
>>>output grounded to the core. Connect a 1000 ohm 1/2 watt (or larger)
>>>resistor across the other HV output and carefully measure the voltage
>>>across the resistor (connect firmly and keep hands off during the
>>>measurement). The voltage output in volts will be equal to the output in
>>>milliamperes.

	However:

	The meter scaling/calibration Assumes a nice, well
	mannered AC waveshape, typically sinusoidal.  Tesla
	System waveshapes may or may not (mostly aren't)
	sinusoidal.

	A higher reading on the meter will indicate more current,
	which is useful to know.

	A '10 mA' (or whatever) reading (however scaled) will be
	only vaguely related a 'real' 10 mA or anyone else's
	10 mA.

	(exception: if one happens to have a 'true RMS' meter.
	Such like are rather uncommon, and likely touchy about
	extreme EMI fields...)
-- 
	best
	dwp

...the net of a million lies...
	Vernor Vinge
There are Many Web Sites which Say Many Things.
	-me