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ID = 19296
Brand: Common type Europe tube/semicond.
Tube type:  HEPTODE 
Identical to E91H = 6687
Similar Tubes
Normally replaceable-slightly different:
  1680 ; 2032 ; 5915 ; EH900S ; EH960
Other class quality (otherwise equal):
First Source (s)
Mar.1957 : Funkschau 1957, Heft 5
Predecessor Tubes EH900S  

Base Miniatur-7-Pin-Base B7G, USA 1940
Filament Vf 6.3 Volts / If 0.27 Ampere / Indirect / Specified voltage 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] 
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Tube prices 2 Tube prices (visible for members only)

E91H: E.K.
Anonymous 225 Collector
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eh900s_sock~~7.png E91H: Telefunken Taschenbuch 1971
Anonymous 15 Collector

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Just Qvigstad
E91H: Lorenz Empfänger-Röhren , 9. Auflage
Anonymous 54 Collector

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Usage in Models 1= 1956?? ; 1= 1960 ; 1= 1961? ; 1= 1965?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):4

Collection of



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