Antique radios, Old Time Radios

DK21_9pin

Country:	Netherlands	Brand:	Philips; - Eindhoven; Netherlands
		Developer:	Philips; - Eindhoven; Netherlands
		Tube type:	OCTODE Frequency converter Controlling (mu)
			Late but no serial production. For instance only development samples. *****

Tube ID = 31607


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Identical to	DK21_9pin
Similar Tubes	Other base: DK21
First Source (s)	Apr.1940 : Philips documents
Successor Tubes	1940 DK21

Base	Loctal-9-Pin (B9G)
Was used by	Radio/TV-reception etc.
Filament	Vf 1.4 Volts / If: 0.05 Ampere / -: Direct / -: Battery = /
Literature	- - Manufacturers Literature

original Philips documents
Jacob Roschy

No further Information for

DK21_9pin

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