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SKR2

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ID = 29330
       
Country:
Germany
Brand: Narva, VEB; Kombinat; Oberweißbach (Ostd.)
Developer: Narva, VEB; Kombinat; Oberweißbach (Ostd.) 
Tube type:  Geissler Crookes Elster-Geitel Hittorf   Text 
Identical to SKR2

Base Duodecal (12-pin), B12A (not glass)
Filament Vf 4 Volts / Half indirect / Specified voltage AC/DC
Description

Electron flow windmill. Demo unit built to show the properties of electrons, making a small metal-vane propeller to rotate when hit by an electron beam. This was a common item in the physics laboratories of technical scools in the past century. It operated with an accelerating voltage as low as 350 V.

 
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Dimensions (WHD)
incl. pins / tip
125 x 125 x 220 mm / 4.92 x 4.92 x 8.66 inch
Weight 190 g / 6.70 oz
Tube prices 4 Tube prices (visible for members only)
Information source - - Manufacturers Literature   
 
skr2_1_red.jpg
SKR2: eigene Sammlung
Gerhard Eisenbarth

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narva_skr2_d1.png
SKR2: Private collection
Emilio Ciardiello

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