radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

R77

Information - Help 
ID = 16248
       
Country:
France
Brand: Dario (tubes) - voir aussi La Radiotechnique
Tube type:  Triode, vacuum   Power/Output 
Identical to R77
Similar Tubes
Normally replaceable-slightly different:
  B405
First year 1928 Saga of the Vacuum Tube, Tyne page 403
First Source (s)
10.Dec.1928 : -- Original prospect or advert "Le Mercure Africain"
Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 4 Volts / If 0.15 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
r77_so.png R77: rtt
Anonymous 10 Collector

Just Qvigstad 		r77dariodatasmall.png
R77: own collection
Peter den Boer
More ...
Usage in Models 1= 1928?? ; 1= 1929? ; 4= 1929
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):6
 
r77darioebayph1.jpg

 
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]
  
Data Compliance More Information