Re: Do multimeters "wear out" after so many years? Fluke vs. Ideal, Wavetek??



In article <6wis3081fx.fsf@xxxxxxxxxxxxxxxxxx>,
Sam Goldwasser <sam@xxxxxxxxxxxxxxxxxx> wrote:
> > > You could, of course, simply use a parallel resistor to bring a DVM
> > > more into line with a needle type. Something like 240k ohms for 240
> > > volts.

> A typical needle type VOM has a resistance of 20,000 ohms/V.

Yup - that's common for a decent AVO on DC. But assuming no electronics,
1000 ohms/V AC is also common. Looking for the best pure non electronic
one I can find, this goes to 40,000 DC and 4,000 AC.

But for measuring home mains, 1000 ohms/V is fine. Stops those silly
readings caused by coupling of one sort or another.

--
*What was the best thing before sliced bread? *

Dave Plowman dave@xxxxxxxxxxxxxxx London SW
To e-mail, change noise into sound.
.