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The HP 196B had a Polaroid Land Camera back that produced finished photos in 10 seconds. |
Oscilloscope cameras produced permanent records of oscilloscope
displays for use in engineering reports or in other situations where
pictures of waveforms, or traces, were needed. These cameras could
photograph single traces on the oscilloscope that were too short-lived
for the eye to see.
The HP 196B included an ultraviolet light that caused the phosphor
to gently glow, generating a gray background to the finished photo
or "oscillogram." The gray background sharply contrasted
the white trace, or waveform, with the black graticule lines (the
measurement lines on the oscilloscope), making the oscillogram easier
to interpret. This camera had a Polaroid Land Camera back that produced
finished photos in 10 seconds. It was priced at $445.
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