Power Factor and Wattage Unit for Universal Avometer. This
is an accessory for the model 7 or model 40 AVOmeter details of which
can be seen
here:
avo7mk2.html You might like to see here as well:
avometersdata.html for this and other meters in the range. The
instructions for use are shown on the back of the unit (see below) but
for a more detailed description see the instructions below and Pages
22-28 of this document
I was given this instrument which formed part of a large collection amassed by Bob Evans by his daughter Alice Kirby.
