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HL2_MOV

Information - Help 
ID = 21058
       
Country:
Great Britain (UK)
Brand: MO Valve Co. Ltd.; GB
Tube type:  Triode, vacuum   Universal 
Identical to HL2_MOV = B228
First Source (s)
06.May.1931 : Wireless World (The), London (WW, 79) Advt p3

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Filament Vf 2 Volts / If 0.1 Ampere / Direct / Battery =
Description Va<150. Gm 1.5mA/V at Va=100, Ia=1.25. -Vg=1.5. Available with metallised or plain bulb. 
Dimensions (WHD)
incl. pins / tip
42 x 105 x mm / 1.65 x 4.13 x inch
Information source - - Manufacturers Literature   
 
hl2_met_marconi.jpg
HL2_MOV: My tubes
Anonymous 413 Collector

 
1_250.png
HL2_MOV: Telefunken Werkstattbuch
Wolfgang Bauer

 
hl2_spec.png
HL2_MOV: Marconi Advertisement
Anonymous 15 Collector


from Just Qvigstad

Usage in Models 1= 1932

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1

Collection of a member from FIN

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