Antique radios, Old Time Radios

KCH1

Country:	Europe	Brand:	Common type Europe tube
		Developer:	Telefunken Deutschland (TFK)
		Tube type:	Triode-Hexode Frequency converter Controlling (mu)

Tube ID = 1826

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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 base P (P8A) (Codex=Sv)
Filament	Vf 2 Volts / If: 0.18 Ampere / -: Direct / -: Battery = /
Literature	Taschenbuch zum Röhren-Codex 1948/49


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

KCH1: collection JR
Jacob Roschy

KCH1: Telefunken Werkstattbuch
Wolfgang Bauer

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

Usage in Models	2= 1938 ; 3= 1939? ; 12= 1939 ; 8= 1940 ; 1= 1941
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 26

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