On Sunday, 16 July 2017 21:50:45 UTC+1, wrote:
On Sun, 16 Jul 2017 13:20:54 -0700, Jeff Liebermann
wrote:

On Sun, 16 Jul 2017 14:48:48 -0400, wrote:

...I have never
seen any analog meter using more than two batteries. That's 3 volts.
I have several analog meters and they all use two AA batteries. Except
for the one mini meter which only has only one AA battery.

The Simpson 260 VOM used a single D cells and a 15V battery (Eveready
417) for the Rx10K range. Later models switched to a 9V battery and
then to 4ea AA batteries. The Triplett 630 used a single D cell and a
30V (Eveready 413).

Many old meters used 9v or 15v batteries as well as a 1.5v.

Ok, I guess you have meters that I've never seen. I have to wonder why
they need such high voltage to measure resistance.

To enable the highest R range to work

However, I would not
use those meters on modern circuits if I owned them.

they're fine, just don't use the top R range on anyhing delicate.

My analog meters are all older Radio Shack meters, which I have owned
for many years. All (except the mini), have two AA batteries.

I also have a few VTVM's. I am not sure what they output, so I dont use
them on any solid state devices. But they are well suited for tube gear,
and can handle the high voltages in tube gear, which a lot of the
battery operated portable VOM's cant handle.

voltmeters don't output anything. They should be fine measuring solid state.


NT