10 Jan
2006
10 Jan
'06
4:43 p.m.
From: "Tony Duell" <ard at p850ug1.demon.co.uk>
AVO was a trade mark of "The Automatic Coil Winder and Electrical
Company",
who made measuring instruments and coil winders.
The instruments included meters, valve testers, signal generators,
transistor testers and LCR bridges.
I have a few manuals for meters and coil winders on my site:
www.g1jbg.co.uk/service.htm
if anyone needs them.
Jim.
But if I want
an accurate measurement, yes, I'll use
another meter. Maybe one of my AVOs:
http://www.gifford.co.uk/~coredump/avo.htm
Ah yes, fine instruments. I have an old Model 8 (I can't remember the
version), a DA114 (early digital meter) and, of course, a Valve
Characteristic Meter Mk 4.
For the people across the Pond, AVO, of course, comes from the initals of
Amps Volts, Ohms. It was the brand name of one of the first multimeters
in the UK (the 'Universal AVOmeter' was around before WW2 I think,
'Universal' meaning it had AC and DC ranges). Amongst older engineers and
scientists, 'AVO' is used as a generic name for any multimeter over here.