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1878

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ID = 7513
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
Identical to 1878
First year 1935 Tube leaflet collection E.Erb Analysis by original leaflets

Base Edison big E27 = 27 mm (Codex=Edison 27 mm) Top contact with a cap.
Filament Vf 4 Volts / If 0.7 Ampere / Half indirect
Description

<10.5kV rms <2mA mean.

 
Information source Taschenbuch zum Röhren-Codex 1948/49   
-- Original-techn. papers.   

valvula1878.png
1878: Internet
Miguel Angel Trujillo-Rodriguez

1878_so.png 1878: rtt
Anonymous 10 Collector

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Just Qvigstad
1878_dat.png
1878: elektron taschenbuch 1952
Heinz Höger

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Collection of

Collection of a member from D
 
roehre_1878_bild_1.jpg

1878
 

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