HAMAMATSU IP21 PHOTOMULTIPLIER TUBE w/ Socket & Side-On/Window Housing

Description

Hamamatsu type IP21 Photomultiplier Tube -- side-on / circular cage type photomultiplier first developed in 1959 by Hamamatsu Photonics - tube dated 7-70 -- Sb-Cs photocathode
with receptive area of 8x24mm -- tube is 94mm tall including pins and tube base is 32mm wide-- includes electrical socket and housing with shutter possibly suited for vacuum use --
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tube appears nearly flawless - the housing has light wear
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we are always listing interesting relics of Tech History
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