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UY4

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ID = 897
       
Country:
Germany
Brand: Valvo Radioröhrenfabrik GmbH; Hamburg
Developer: Valvo Radioröhrenfabrik GmbH; Hamburg 
Tube type:  Half-Wave Vacuum Rectifier 
Identical to UY4
First year 1949 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
May.1949 : Funkschau (FS) 1949 # 11
Predecessor Tubes CY1  
Successor Tubes UY41  

Base Europe side contact base P (P8A)
Filament Vf 35 Volts / If 0.1 Ampere / Indirect / Series, AC/DC /
Tube prices 4 Tube prices (visible for members only)

  uy4.png
  UY4: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
uy4_230rn.jpg
UY4: Collection JR
Jacob Roschy

 
uy4_so.png
UY4: rtt
Michael Schlör

 
uy4_techdat01.png
UY4: SEL Handbuch 1964
Peter Hoddow


Usage in Models 3= 1948 ; 1= 1949? ; 11= 1949 ; 1= 1950?? ; 6= 1950
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):22

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