(Fwd) 19 inch rack standard?

[Brian Carling]

Anyone have any clues on this that we could pass along to Clive?
(Polite ones please! :-)

------- Forwarded Message Follows -------
Date:          Mon, 08 Jun 1998
To:            uk-vintage-radio at webaware.co.uk
From:          Clive Woodward <woodward at omen.net.au>
Subject:       19 inch rack standard?


Gudday Vintage Fans,

For many years I've pondered the origins of the 19 inch equipment rack
standard and perhaps this is the forum to seek answers...

Yeh, the fundamental measurement - where did they come up with 19
inches as a size? It's not a neat metric figure (482mm) nor a neat
imperial figure (why not 18 (half a yard) or 20 inches?). Once one
gets into the vertical sizes it gets worse. One unit = one and three
quarter inches?

Does anyone have any ideas here? Any dates - I think we're in the
region between the two world Wars?

All suggerstions greatfully received :-)

Cheers,

Clive.
_____________________________________________________________________


             .          Clive Woodward
       _/- /_|\         PO Box 74
     .~  |     \        Applecross WA 6953
     \ WA|      \       AUSTRALIA
   => *_.-.._   /
             "-"        Phone   +61 8 9364 3293
              V         email   woodward at omen.net.au

 "Help stamp out, eliminate, and abolish redundancy."

 "Astralia - Land of Sunshine and Sharks!"

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