On 10/11/2019 08:29, Bob Eager wrote:
On Sun, 10 Nov 2019 07:06:54 +0000, Robin wrote:

On 10/11/2019 03:43, wrote:
On Saturday, 9 November 2019 20:51:03 UTC, Steve Walker wrote:
On 09/11/2019 19:21, Lee Nowell wrote:

The meter is an old (circa 30 years) fluke meter. Good quality but
old. There is earth at the junction box - should I run some more
reading with that?

A 30-year old digital meter will probably be 20M or more, while an
older, analogue meter might be 10K.

SteveW

Decent moving pointers were 50k/volt, so 15M on a 300v dc scale, half
that on ac. Rock bottom ones were 1k/v so 150k for 300v ac scale.



Well I never knew before that the Avo 8 (with 1000 ohms-per-volt on AC
ranges of 100V and upwards) was at least close to "rock bottom" in the
moving coil meter market.

Generally was lower on AC ranges. For DC, was 20,000 ohms-per-volt.

Indeed - which is still far short of "decent" (as defined above).

I have one of the last ones manufactured.

Mine was made in the 60s - and the leads are rather inflexible as a
result of the copious tape where the insulation has perished. (Me too
mean to buy new leads for what is very, very occasional use.)

--
Robin
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