Surgistors were very popular in the 50's as either
an add-on for TV
receivers or as part of the original chassis.
Filled with the finest snake oil available...
I don't know about the 1600 volt supply for the
Univac Solid State
machines for the clock output stage. That might be a possibility,
but I can't find a reference. Weren't some mercury vapor thyratrons
used to drive some printer and punch coils in the early systems?
It is entirely possible.
I would like to find more references to find out exactly what tubes
were used in specific equipments, but for various reasons, that
project has stalled.
--
Will