October 18, 1965 Electronics
[Table of Contents]
Wax nostalgic about and learn from the history of early electronics.
See articles from Electronics,
published 1930 - 1988. All copyrights hereby acknowledged.
Are you old enough to remember
when in order to make a measurement on a circuit board it was necessary to physically
connect an oscilloscope probe to a trace or component lead? "Wait," you say, "What are
you talking about? You still do have to physically connect a probe." Right you are, but
50 years from now your progeny will be asking that question, just as today I ask you
do you remember when in order to get a "screen shot" of an o−scope or spectrum
analyzer display it was necessary to connect a camera to the front of the CRT? Some instruments
had an(a) output port(s) for driving a pen plotter, but getting a plotter set up and
calibrated was often more work and frustration than hanging a camera on the front. Most
of the cameras used Polaroid film packs to enable "instant" pictures. Getting a good
image usually took a couple tries. Scope cameras were still in common use when I entered
the electronics world in the 1970s. It really wasn't until the later 1980s or early 1990s
that printers could be hooked up to newer test instruments with a GPIB or parallel output
Fairchild Instrumentation Ad
The highest precision and clarity in oscilloscope
photography are insured by a long list of Fairchild design features. Pinpoint focusing
at any object-to-image ratio within lens range is one. Heavy duty synchro shutters with
jam-proof activation are others. With Polaroid Land Back, 6 x 10 cm field can be recorded
0.9 actual size. Option of f/1.9 or f/2.8 lens. Prices start at $350.
For specifications or a demonstration, contact your local Fairchild Field Engineer,
or write to Fairchild Instrumentation, 750 Bloomfield Avenue, Clifton, N. J.
A Division of Fairchild Camera and Instrument Corporation
Posted November 1, 2018