On Dec 15, 2008, at 1:50 AM, Brent Hilpert wrote:
   NonLinear
Systems was an electronics test tool builder in Solana
 Beach, CA ('bout half an hour north of San Diego). I don't recall
 when it was formed by Andrew Kay (probably the 50's or even
 earlier), but it created the first digital voltmeter in the early
 60's. It was a very inventive company. 
 The radio museum here received one of what I believe was that first
 DVM from
 NLS (circa mid-50's), something of an historic model.
 It disappeared before I had a chance to look at in depth or work on
 it. 
 
   They're neat, and historically very important.  One showed up on
eBay a few months ago; it went for serious bucks, so apparently some
people know about the model.
           -Dave
--
Dave McGuire
Port Charlotte, FL