[Milsurplus] Russia vs. US

[Tom Norris]

Many older pieces of test equipment -- in particular
things like galvanometers and potentiometers
(not the type used for volume controls!) used
projected displays for that very reason.

>de WB2CPN South Central Pennsylvania  2004.05.03
>
>The German electronic test equipment company
>Wandell & Golterman made a measuring set in the
>70's that used a projection read-out.  Reason was
>for accuracy.  The dial was made by photo and
>direct calibration.  AT&T, the old Long Lines,
>bought a lot of them.
>
>73  Clete
>
>
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