Quote:
Originally Posted by John10b
I will also dig out my old AVO 7,should this give the same readings as an AVO 8?
Cheers
John
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I wrote what's shown below before I read Graham's Post.
It depends on the impedance of the circuit you are measuring, the AVO 7 is nominally a 500 ohms per volt job, the AVO 8 is a 20,000 ohms per volt job.
In other words if you were measuring a voltage with the AVO 7 switched to the 100 volts range you will, in effect, be connecting a 50k resistance across the circuit being measured, with the AVO 8 switched to the same range you will be connecting a 2 meg resistance across the circuit.
The resistance presented by the meter being the ohms per volt figure multiplied by
the voltage range selected.
Lawrence.