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ID = 20439
Brand: Funkwerk Erfurt, VEB, RFT (Ostd.) - vorm. Telefunken GmbH
Tube type:  HEPTODE 
Identical to EH960 = 5915 = EH900S
Similar Tubes
Normally replaceable-slightly different:
  1680 ; 2032 ; 6687 ; E91H
Other class quality (otherwise equal):
Predecessor Tubes 2032  

Base Miniatur-7-Pin-Base B7G, USA 1940
Was used by Industrial
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC
Description Designed as logic switching tube: both control grids at 0 V = tube conducts, control grid #1 OR control grid #3 at negative voltage: tube blocked _ [JR] 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
18 x 60 x mm / 0.71 x 2.36 x inch
Weight 10 g / 0.35 oz
Tube prices 2 Tube prices (visible for members only)

eh900s_sock~~8.png EH960: Telefunken Taschenbuch 1971
Anonymous 15 Collector

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