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I recently picked up a Dumont scope type 2559a serial # 1252
Looks really cool and the thing weighs like 100 lbs.
Anyway I was playing with it over the holidays and it seems to be reading
vertically on the screen instead of horizontally like a normal scope.
Anyone ever heard of or seen that before? Any ideas?

There's a manual on ebay for pretty cheap.

http://www.ebay.com/itm/Cathode-Ray-...AOSwBLlVJzT d

This is a late 1950's scope so most that ever used one have forgotten about
them.