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ID = 680
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Developer: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH 
Tube type:  Half-Wave Vacuum Rectifier 
Identical to UY2
First year 1949 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
May.1949 : Funkschau 1949 # 10
Predecessor Tubes VY2  
Successor Tubes 1947   UY41  

Base Europe side contact, small P5 (Au V, 5E)
Filament Vf 26 Volts / If 0.1 Ampere / Indirect / Specified current AC/DC ~ = (Series working)
Tube prices 6 Tube prices (visible for members only)
  UY2: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
UY2: Collection JR
Jacob Roschy

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UY2: rtt
Michael Schlör

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UY2: SEL Handbuch 1964
Peter Hoddow

from Just Qvigstad

Usage in Models 2= 1949?? ; 3= 1949? ; 16= 1949 ; 21= 1950 ; 1= 1952? ; 1= 9999

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):44

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