Antique radios, Old Time Radios

DCH21

Country:	Europe	Brand:	Common type Europe
		Developer:	Philips; - Eindhoven; Netherlands
		Tube type:	Triode-Hexode Frequency converter Controlling (mu)

Tube ID = 8654


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Identical to	DCH21
Similar Tubes	Different connections: DCH31 Other base: DCH21_9pin
First Series	Jan.1941 Tube leaflet collection E.Erb
First Source (s)	Mar.1940 : Philips Bulletin # D 78 Aug.1940 : Philips Archive
Predecessor Tubes	KCH1 DCH21_9pin
Successor Tubes	1941 DCH25 DCH22

Base	Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Vy)
Was used by	Radio/TV-reception etc.
Filament	Vf 1.4 Volts / If: 0.15 Ampere / -: Direct / -: Battery = /
Tube prices	0 Tube prices (visible for members only)
Literature	Taschenbuch zum Röhren-Codex 1948/49

scc
Christian Schaufelberger

Telefunken Werkstattbuch
Wolfgang Bauer

Lorenz Empfänger-Röhren , 9. Auflage
Michael Sigmund

Usage in Models (calculation each 25th of the month)	1= 1940 ; 1= 1941 ; 4= 1942 ; 3= 1943 ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 9

No further Information for

DCH21

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