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DL

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ID = 11152
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Developer: Marconi-Osram - (Valves/Tubes); GB 
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to DL = VT85_GPO = CV1661 = DP
First year 1931 The Saga of Marconi Osram Valve

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928
Was used by Radio/TV-reception etc.
Filament Vf 16 Volts / If 0.25 Ampere / Indirect / Specified current DC = (Series working)
Description

This tube is a low impedance small output type for low frequency amplification and oscillation.

 
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
Babani, International Radio Tube Encyclopaedia

4608~~1.png DL: Fin Stewart
Fin Stewart


Just Qvigstad
d.l_osram.png
DL: osram wireless guide 1931
Giuseppe Antonio Tusini

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Usage in Models 8= 1932

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):8
 
dl_osram.jpg

 

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