radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

DAC21

Information - Help 
ID = 1862
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Diode-Triode   Audio Frequency 
Identical to DAC21 = MDAC21
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 3 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   

  dac21.png
  DAC21: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
dac21philips.jpg
DAC21: W.E.
Wolfgang Eckardt

 
oc14.png
DAC21: RTT 1974 (Franzis) 13. Auflage
Martin Renz

 
dac21_spec.png
DAC21: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector


Usage in Models 3= 1940?? ; 3= 1940? ; 16= 1940 ; 3= 1941?? ; 4= 1941? ; 11= 1941 ; 1= 1942? ; 14= 1942 ; 1= 1943? ; 3= 1943 ; 5= 1944 ; 1= 1945?? ; 3= 1945? ; 4= 1945 ; 1= 1946? ; 1= 1946 ; 3= 1947 ; 1= 1948?? ; 5= 1948 ; 8= 1949 ; 1= 1950?? ; 1= 1951 ; 1= 1952?
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):94

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]
  
rmXorg