On 12/6/18 9:49 AM, Ralph Mowery wrote:
Ok, I see that the input impedance is 25 meg ohms where most
are around 10 meg. That explains the difference.

Comparatively:
That's 25,000 ohms/volt on the 1000 range.
With 11 meg, it's only 11,000 ohms/volt.

Typical multi-meters like the Simpson are 20,000/volt, but at
the 29 volt range, that's only 400 Kohms, which will load a
high impedance source considerably more than the VTVM at either
11 or 25 Meg.

However, if you're using the 20 volt range for measuring AVC
voltages, it's 1.25 meg ohms/volt.


--
"I am a river to my people."
Jeff-1.0
WA6FWi
http:foxsmercantile.com