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W727

Information - Help 
ID = 21587
       
Country:
Great Britain (UK)
Brand: Osram-Valves GB (not MO-Valves)
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to W727 = EF93 = 6BA6 = CV454
First Source (s)
Jul.1953 : - - Manufacturers Literature

Base Miniatur-7-Pin-Base B7G, USA 1940
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Parallel / series AC/DC /
Description Va<300. Pa<3W gm=4.4mA/V. Vg1=-50 at cut-off. 
Literature Röhren-Taschen-Tabelle, (Franzis RTT)   
- - Manufacturers Literature   

 
gb_w72_osram.jpg
W727
John Koster

 
mi28_5~~1.png
W727: RTT 1974 (Franzis) 13. Auflage
Martin Renz

 

Usage in Models 2= 1955 ; 1= 1956? ; 3= 1956

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):6


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