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3/31

Information - Help 
ID = 22749
       
Country:
Great Britain (UK)
Brand: EMI; Hayes, Middlesex
Tube type:  Television picture tube black+white   Indication 
Identical to 3/31

Was used by Radio/TV-reception etc.
Filament Vf 8.5 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC
Description

12 inch Circular Tube.

50o Deflection

B7B Base

Heater-Cathode Voltage <200

Magnetic Focus and Deflection. Aluminised

Maximum Final Anode 9kV <150µA

Cut off Grid Voltage -20V

 
Text in other languages (may differ)
Tube prices 1 Tube prices (visible for members only)
Information source Wireless World (The), London (WW, 79)   

Usage in Models 4= 1952

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):4
 

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