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Ionenröhre-Gundelach

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ID = 66816
       
Country:
Germany
Brand: Gundelach, Emil; Gehlberg /Thüringer Wald
Tube type:  SPECIAL TUBE, other or unknown   Indication 
Identical to Ionenröhre-Gundelach

Base No base Side contacts.
Filament
Description

Gas tube Gundelach ca. 1920 on wooden Stand, length 8.6 inches, bowl diameter 3.15.
Patent No. D.R.P. 103100.
For demonstration of formation and effect from cathode rays, manufactured from special glass.

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
80 x 330 x mm / 3.15 x 12.99 x inch
 
d_gundelach_ionenroehre_gundelach_front.jpg
Ionenröhre-Gundelach: Ebay auction by user tyroneneumann 261403677247
Anonymous 38 Collector

 

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