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STV280/40

Information - Help 
ID = 12245
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Tube type:  Voltage Regulator, cascade 
  Ca. 1925 up to 1945 rare.
Identical to STV280/40 = OSW3806 = StR280/40 = PTT3001 = RT280/40 = CV1068
Similar Tubes
Normally replaceable-slightly different:
  3806_OSW ; AW4 ; VS68
Other class quality (otherwise equal):
  TRT10

Base Europe 5-Pin (O5A, B5) (Codex=Fb)
Was used by Industrial
Filament
Description

Also Manufactured by GEC Valves UK.
280V; 210V; 140V and 70V.
Minimum Ik=5mA. Max Ia =35mA for 280V anode 40mA for the 310V anode, 60mA for the 140V and 70V anodes.

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
x 138 x 48 mm / x 5.43 x 1.89 inch
Weight 148 g / 5.22 oz
Tube prices 14 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Page 1065
  stv280_40_usch.png
  STV280/40: Funkschau 04/1941 Seite 55
Thomas Günzel
 
stv28040_rn.jpg
STV280/40: Collection JR
Jacob Roschy

 
sockeleu73.png
STV280/40: RTT 1974 Franzis
Anonymous 61 Collector

 
stv28040.png
STV280/40: Lorenz Empfänger - Röhren
Anonymous 54 Collector


Usage in Models 1= 1932?? ; 1= 1934?? ; 2= 1937? ; 2= 1938?? ; 2= 1938? ; 2= 1938 ; 1= 1939 ; 1= 1940?? ; 1= 1940? ; 2= 1940 ; 1= 1942? ; 1= 1943? ; 1= 1944? ; 1= 1946? ; 1= 1948?? ; 2= 1948? ; 1= 1949?? ; 1= 1949? ; 1= 1950?? ; 1= 1950? ; 1= 1952 ; 1= 1953 ; 5= 1954 ; 1= 1955? ; 1= 1956? ; 1= 1957? ; 1= 1961??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):37


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