Antique radios, Old Time Radios

W727

Country:	Great Britain (UK)		Brand:	Osram-Valves GB (not MO-Valves)
			Tube type:	Vacuum Pentode RF/IF-Stage Controlling (mu)

Tube ID = 21587


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Identical to	W727 = EF93 = 6BA6 = CV454
First Source (s)	Jul.1953 : - - Manufacturers Literature

Base	Miniatur-7-Pin-Base B7G, USA 1940
Was used by	Radio/TV-reception etc.
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 14.A, (Franzis RTT) - - Manufacturers Literature

RTT 1974 (Franzis) 13. Auflage
Martin Renz

Usage in Models (calculation each 25th of the month)	2= 1955 ; 1= 1956? ; 3= 1956 ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 6

No further Information for

W727

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