[Test-Equipment] Advance model D1 Signal Generator.

Tue, 02 Sep 2003 05:36:42 +0000

   In a darkened area with a strong light coming at one
horizontal angle wipe the glass envelope and exhale on it
and watch the fog disappear, you may have to do it repeatedly
to find it.  (this is why the numbers are normally acid etched
on the glass)

> The printing of the valve/tube type
> numbers has faded from the glass bottles.
-- 
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