Vacuum Scale, Vintage Physics By Pressler Museum Quality Working

VACUUM SCALE, VINTAGE {PHYSICS} BY PRESSLER, EAST GERMANY - MUSEUM QUALITY - WORKING. This stunning vacuum scale is shown working, (powered by induction coil which is not included in sale)! I have reversed the polarity to each tube and taken two photos in each case.

These tubes are of the finest quality and the level of vacuum has survived since the 1950's. The pressure in each of the six tubes, from the left is as follows:- 10, 5, 1.25, 0.75, 0.05 and 0.025 Torr. The tubes are mounted in a polished lacquered Beech frame. The bottom end of each tube is connected to a common terminal and the top of each tube is attached to it's own independent terminal, (all 4mm sockets). This item really is a spectacular catch!

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