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HL2K

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ID = 14301
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Developer: Marconi-Osram - (Valves/Tubes); GB 
Tube type:  Triode, vacuum   Audio Frequency 
Identical to HL2K = VT50 = CV1050

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.1 Ampere / Direct / Battery =
Description

This tube is described as being a "Batkin", the name being taken as "B" for battery. Other "Batkins are the PT2K andd VS24K. First made in 1934 as a battery operated type with the anode in a diamond shaped section.

 
Information source The Saga of Marconi Osram Valve   p. 224 & 225
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 85, p. 118

1_251.png HL2K: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
Usage in Models 1= 1927 ; 1= 1933 ; 1= 1934 ; 1= 1935 ; 1= 1936 ; 1= 1984

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

Collection of

 
hl2k_gecovalve_ph1r.jpg

HL2K
 

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