radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

DH

Information - Help 
ID = 2753
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Developer: Marconi-Osram - (Valves/Tubes); GB 
Tube type:  Triode, vacuum   Audio Frequency 
  Ca. 1925 up to 1945 rare.
Identical to DH = VT89_GPO = Cv1665
First year 1931 The Saga of Marconi Osram Valve

Base Europe 5-Pin (O5A, B5)
Was used by Radio/TV-reception etc.
Filament Vf 16 Volts / If 0.25 Ampere / Indirect / Series, DC
Description

This tube used as a high efficiency general purpose type for use as a detector or first audio stage. Also available with metallised bulb.

 
Literature - - Manufacturers Literature   
Taschenbuch zum Röhren-Codex 1948/49   
 
dh_marconi_1.jpg
DH: own collection
John Koster

 
4608~~4.png
DH: Fin Stewart
Fin Stewart

 
d.h_osram.png
DH: osram wireless guide 1931
Giuseppe Antonio Tusini


Usage in Models 1= 1931 ; 1= 1932?? ; 12= 1932 ; 3= 1933? ; 8= 1933 ; 1= 1934?? ; 2= 1934? ; 7= 1934

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):35


You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  
rmXorg