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E280F

Information - Help 
ID = 18576
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to E280F = 7722

Base Noval, B9A (Codex=Noval)
Filament Vf 6.3 Volts / If 0.315 Ampere / Indirect / Parallel, (AC/DC)
Description Special quality wideband RF amplifier with a gm of 26mA/V at Ia of 20mA. 
Text in other languages (may differ)
Tube prices 6 Tube prices (visible for members only)
Information source -- Collector info (Sammler)   Siemens Bereich Röhren Taschenbuch 1972
  e280f.gif
  E280F: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
e280f_telefunken.jpg
E280F: Sammlung KHB
Karl - Heinz Bossan

 
e280f_sock.png
E280F: Ratheiser RTH,3.Aufl.,1964
Egon Penker

 
e280f_kennlinie.png
E280F: Ratheiser RTH,3.Aufl.,1964
Egon Penker


from Just Qvigstad

Usage in Models 1= 1955? ; 1= 1958 ; 1= 1959 ; 1= 1960?? ; 2= 1961? ; 2= 1961 ; 1= 1963? ; 2= 1963 ; 1= 1964?? ; 3= 1964? ; 1= 1965?? ; 1= 1965 ; 1= 1966?? ; 1= 1966 ; 1= 1969 ; 1= 1970??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):21


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