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U18/20

Information - Help 
ID = 70643
       
Country:
Great Britain (UK)
Brand: MO Valve Co. Ltd.; GB
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to U18/20
Predecessor Tubes U20_MOV   U18  

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 2.8 Ampere / Direct / Parallel, (AC/DC)
Description

Replaces the types U18 and U20.

Va <2.4kV with Ia <400mA peak with reseroir C 8µFor <1.4kV if Ia < 750mA peak with C 16µF.

 
Dimensions (WHD)
incl. pins / tip
56 x 135 x mm / 2.20 x 5.31 x inch
Literature - - Manufacturers Literature   
 
u18_20.png
U18/20: own collection
Peter den Boer


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