[Test-Equipment] B&K (DynaScan) 179 FET-VOM - Manual or Schematic PDF?

[Bob Kulow]

The 9-volt batteries might be in parallel. I have an old EICO FETVM 
and it is set up just that way.  My guess is that it was designed in 
the days before alkaline batteries and needed the extra current capacity.

73
Bob WA2UEH