Re: Measuring HV Transformers

• To: "'Tesla List'" <tesla-at-poodle.pupman-dot-com>
• Subject: Re: Measuring HV Transformers
• From: Tesla List <tesla-at-stic-dot-net>
• Date: Fri, 24 Oct 1997 00:01:22 -0500
• Approved: tesla-at-stic-dot-net

From: 	Edward V. Phillips[SMTP:ed-at-alumni.caltech.edu]
Sent: 	Thursday, October 23, 1997 2:26 PM
To: 	tesla-at-pupman-dot-com
Subject: 	Re:  Measuring HV Transformers

"NOTE: Some kinds of AC meters have a large error when reading voltages below 5
volts. Digital meters do not have this problem, but many of the older analog
meters do, since the diode bridge typically used has a diode drop. For example,
a silicon diode will have a diode drop between .6 and .8 volts. That will
produce a significant error on the 10 volt scale!"
	My old Simpson and Triplett multimeters overcome that problem
by having a different scale for 2.5 volts.  They are pretty accurate
on that range.
Ed

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