|Tektronix RM31A Oscilloscope
A rack-mounting beastie version of the venerable 531 scope - a valve driven monster that is 19" wide by 14" tall and 23" long. It produces so much heat from its many tubes (all 49 of them!) that it actually has its own fan built into the case!
My example here has a Type G Plug-In (a wideband differential amplifier) and I also have the Type CA Dual Trace Plug-In.
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Last updated 9th April 2002