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1702

Information - Help 
ID = 735
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Full-Wave Rectifier gas filled 
Identical to 1702 = R220
Similar Tubes
Other characteristic (electr. data):
  1701
First Source (s)
1927 : -- Schematic

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 1.8 Volts / If 3 Ampere / Direct / Parallel, (AC/DC)
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
1702_3rn.jpg
1702
Jacob Roschy

 
g2340_so~~3.png
1702: rtt
Michael Schlör

 

from Just Qvigstad

Usage in Models 1= 1927 ; 4= 1928? ; 2= 1928 ; 7= 1929? ; 1= 1930? ; 1= 1931?? ; 1= 1980??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):17


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