Analog Meter capability

[Clare Snyder]

Tom Cloud wrote:
> 
> >>
> >> typical DMM has 10M Zin.  typical VOM has 20k ohms/volt (unless you
> >> get it from ratshack .... then maybe 5k or 10k ohms/volt.  If the
> >> analog meter has an internal amp (does it need batteries for more
> >> than the ohms scale ?), then it will likely also have 10M Zin.
> >
> >It requires AA's and a 9 volt battery.  I haven't tried it without the
> >batteries in it to see what does and doesn't work.
> 
> look on the face of the analog meter -- it should tell you the
> Zin.  If not, it should be somewhere on the panel -- like by the
> jacks for the test leads.  If it says something like 20kW/V DC
> (the "W" is an omega -- don't have "symbol" font  ;-)  or 10kW/V
> or such, it's a plain vanilla analog meter with resistors in series
> for the different voltage ranges.  If it says 10M or 11M, then it
> has an amp in the input and is electronic.  If it says "Electronic"
> or "FET" it's probably amplified and has high Zin (10 Meg).  If it's a
> RatShack FET VOM, there's a good chance that only the DC range is
> amplified and the AC range is just a plain old 5kW/V voltmeter.
> I bought one of those before I realized the old switcharoo
> shell game they were playing  :-(    Of course, this won't hurt
> you as you are going to just be using the DC range anyway ... I
> think.
> 
> Note that you can "invest" $75 to $350 in a Fluke hand-held DMM
> that has the bar-graph scale.  That is almost as good as a "real"
> meter  8^)      And it really is a good investment -- you're never
> sorry when you get good tools!
> 
> Tom Cloud
> 
>      Madness takes its toll   .....   please have exact change

I picked up a Micronta bench style meter from the RatShack a few years
ago - extremely good price for a very good meter - bar graph, peak
hold,auto range, everything I need for what I do, and then some. Less
than 1/4 the cost of a Fluke, much better than half the gauge.
Just my humble opinion mind you, but I'm satisfied, and that's really
all that counts.

-- 
                             _/\_
                     --|-----([])-----|--
                       S    0/  \0    B

Remove the R from E-Mail Address to reply. Stop the spammers!!!
It's hard to soar like an eagle when your stuck with a bunch of 
Turkeys