Antique radios, Old Time Radios

DK21

Country:	Netherlands	Brand:	Philips; - Eindhoven; Netherlands
		Developer:	Philips; - Eindhoven; Netherlands
		Tube type:	OCTODE Frequency converter Controlling (mu)

Tube ID = 1860


	previous \| next

Identical to	DK21
Similar Tubes	Different connections: DK31 Other base: DK21_9pin; DK25; DK25_Miniloktal
First Series	1940 Tube leaflet collection E.Erb 41-1?
First Source (s)	Apr.1940 : Daten und Schaltungen moderner ... Röhren; Philips # 3 Mar.1940 : Philips Bulletin # D 78
Predecessor Tubes	KK2 DK21_9pin
Successor Tubes	DK25

Base	Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Vto)
Was used by	Radio/TV-reception etc.
Filament	Vf 1.4 Volts / If: 0.05 Ampere / -: Direct / -: Battery = /
Tube prices	0 Tube prices (visible for members only)
Literature	Taschenbuch zum Röhren-Codex 1948/49


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

r.hopfe
Reinhard Hopfe

Telefunken Werkstattbuch
Wolfgang Bauer

RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

Usage in Models (calculation each 25th of the month)	1= 1938?? ; 1= 1940?? ; 1= 1940? ; 13= 1940 ; 14= 1941 ; 13= 1942 ; 1= 1943?? ; 1= 1943 ; 6= 1944 ; 2= 1945 ; 1= 1946?? ; 1= 1946 ; 1= 1947 ; 1= 1948?? ; 1= 1948 ; 6= 1949 ; 2= 1950?? ; 1= 1950 ; 1= 1951 ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 68

No further Information for

DK21

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]