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1K2

Information - Help 
ID = 27520
       
Country:
Japan
Brand: Common type Japan tube/semicond.
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to 1K2 = DF91 = 1T4 = W17

Base Miniatur-7-Pin-Base B7G, USA 1940
Filament Vf 1.4 Volts / If 0.05 Ampere / Direct / Battery =
Description Die japanische 1K2 ist eine HF-Regelpentode wie die DF91. 
Dimensions (WHD)
incl. pins / tip
19 x 54 x 19 mm / 0.75 x 2.13 x 0.75 inch
  df91~~1.png
  1K2: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
japan_1k2.jpg
1K2: W.E.
Wolfgang Eckardt

 
df91_sockel~~1.png
1K2: Telefunken Handb. d. Rundfunkröhren
Peter Hoddow

 

Usage in Models 1= 1950 ; 1= 1999??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2


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