"Cydrome Leader" wrote in message
...
tm wrote:

wrote in message
...
Hi Folks,

I'm working on an old tube radio (Zenith) and could really use a VTVM. I
don't have much money at all. I'm looking for something very basic and
cheap. I had an old Heathkit but the meter/dial broke.

Thanks,
Gabe Read
Providence, RI

And the reason it needs to be a VTVM and not a $25 Radio Shack digital
multimeter is?

the input impedance on throw away (and even good bench) meters can be
really really low on some ranges, like AC.

I use a Leader FET input? meter for stuff like this. These replaced VTVMs
but retain the essentially zero load on the test circuit.

One use is for takings readings with the 40kV Fluke probe. You'll get
dangerously low readings with pretty much any digital meter on AC ranges.





Good point. However you will pay an accuracy premium on the DC and Ohm
ranges. Most VTVMs will only give 3% FS vs 1% with even the cheap DVMs.