Measuring secondary voltage

From: 	Jim Monte[SMTP:JDM95003-at-UCONNVM.UCONN.EDU]
Sent: 	Monday, January 19, 1998 5:51 PM
To: 	tesla-at-pupman-dot-com
Subject: 	Measuring secondary voltage

<from John Couture's post of Mon, 19 Jan 1998 19:17:09 +0000>

>It should be noted that the Tesla coil secondary voltage can only be
>approximated because connecting any metering instrumentation to the
>secondary circuit would decrease the voltage by an indeterminate amount.

  If you really wanted to know the voltage and were willing to spend
  some time to find it, how about taking a series of measurements,
  using a voltage divider with a different impedance for each
  measurement?  By plotting measured voltage against voltage divider
  impedance magnitude and extrapolating to infinite impedance, it
  seems that a reasonably accurate value for the secondary voltage
  can be measured.

  Jim Monte