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ID = 1826
Brand: Common type Europe tube/semicond.
Developer: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH 
Tube type:  Triode-Hexode   Frequency converter   Controlling (mu) 
Identical to KCH1
First year 1939 Tube leaflet collection E.Erb Analysis by original leaflets (P9)
First Source (s)
1936 : Telefunken 677BK
Dec.1938 : -- Original-techn. papers. Philips-Archiv = 1938
Predecessor Tubes KK2  
Successor Tubes 1940   DCH11   DCH21  

Base Europe side contact P8A (Au P, 8SC) (Codex=Sv)
Filament Vf 2 Volts / If 0.18 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   

KCH1: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †

92.png KCH1: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
KCH1: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

More ...
Usage in Models 1= 1938 ; 1= 1939?? ; 6= 1939? ; 16= 1939 ; 1= 1940?? ; 9= 1940 ; 1= 1941

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):35

Collection of



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