[Lowfer] Selective Voltmeters

[Peter Barick]

Hey group,

Topic: Selective Voltmeters / Levelmeters

From time to time these come available for sale. I've not had any
experience with them but have heard of them being used on LF by some of
the experienced operators. My question, is it risky buying one of these
used, as they appear in various markets? My main interest is LF, say
10kHz to 600kHz.

Some other issues:

   1. For LF, are some more desirable, while others are of be avoided?

   2. Is documentation readily available either in manual form or
friendly cohort advice on user groups?

   3. I know the axiom "You get what you pay for" surely applies here,
but any idea of what is a good $ threshold?
 
Peter