Antique radios, Old Time Radios

DAC21

Country:	Europe	Brand:	Common type Europe tube/semicond.
		Developer:	Philips; Eindhoven (tubes international!); Netherlands
		Tube type:	Diode-Triode Audio Frequency

Tube ID = 1862

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Identical to	DAC21
Similar Tubes	Other base: DAC21_9pin
First year	1940 Tube leaflet collection E.Erb *Analysis by original leaflets
First Source (s)	Mar.1940 : Philips Bulletin # D 78
Predecessor Tubes	KBC1 DAC21_9pin

Base	Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Vx)
Filament	Vf 1.4 Volts / If: 0.025 Ampere / -: Direct / -: Battery = /
Description	The Philips 21- "Key Base" tubes were initially designed in 1940 with the 9-pin base B9G like the EF50. The later series production from 1942 on however was changed to the 8-pin Locktal-base B8G designed by Sylvania. There are also DAC21's with International octal bases.
Tube prices	2 Tube prices (visible for members only)
Literature	Taschenbuch zum Röhren-Codex 1948/49


	DAC21: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus †

DAC21: W.E.
Wolfgang Eckardt

DAC21: RTT 1974 (Franzis) 13. Auflage
Martin Renz

DAC21: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

Usage in Models	3= 1940?? ; 3= 1940? ; 15= 1940 ; 3= 1941?? ; 3= 1941? ; 13= 1941 ; 1= 1942? ; 14= 1942 ; 1= 1943? ; 2= 1943 ; 5= 1944 ; 1= 1945?? ; 3= 1945? ; 4= 1945 ; 1= 1946? ; 1= 1946 ; 4= 1947 ; 1= 1948?? ; 5= 1948 ; 7= 1949 ; 1= 1950?? ; 1= 1951 ; 1= 1952?
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 93

DAC21*Box

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DAC21

DAC21*Box