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Date: Fri, 5 May 2000 22:47:08 EDT
Subject: Re: LF: RF Thermo Couple Meter, calibration?
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Hi Larry,

For most thermocouple ammeters, 60 Hz is sufficient to check calibration.  
The discrepancy between 60 Hz and 137 kHz should not exceed a very few 
percent.  If your AC source is substantially sinusoidal, a fairly common DVM 
with at least a 3 amp scale will do the job quite nicely.

73,
John