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Aa

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ID = 13718
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Developer: Siemens (& Halske, -Schuckert Werke SSW, Electrogeräte); Berlin, München 
Tube type:  Triode, vacuum 
Identical to Aa = 3S26
First Source (s)
1928 : Saga of the Vacuum Tube, Tyne p.437

Base EU-Telephone 5-pin (G5K)
Was used by Telephony
Filament Vf 3.8 Volts / If 0.5 Ampere / Direct / Battery =
Description

Weitverkehrsröhre (Poströhre)

 
Tube prices 8 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   

aa_so.png Aa: rtt
Anonymous 10 Collector

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Just Qvigstad
aa_techdata1a.png
Aa: RFT Unterlagen
Josef Pilz

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Usage in Models 3= 1938?? ; 1= 1938?

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

Collection of

 
e_valvo_aa.jpg

Aa
 

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