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AV44

Information - Help 
ID = 34214
       
Country:
Australia
Brand: Amalgamated Wireless Valve Co. Ltd. (AWV); Sydney, NSW
Developer: Amalgamated Wireless (Australasia) Ltd. (AWA); Sydney 
Tube type:  REGULATOR-/CONTROL-TUBE (general)   Power-supply 
Identical to AV44

Base Octal (Int.Octal, IO) K8A, USA 1935
Was used by Industrial
Filament Vf 2.5 Volts / If 0.72 Ampere / Direct
Description The valve AV44 was made by Amalgamated Wireless Valve Co Pty, Australia. Brand is "AWV Super RADIOTRON". The AV44 is a tungsten filament control diode for regulated power supplies. Max. DC anode voltage is 250 volts and max. filament voltage is 2.5 volts with filament current of 800 mA. Typical operation of the AV44 is filament 2.5 volts and anode voltage 100 volts resulting in 0.1 mA anode current and 720 mA filament current. The AV44 incorporates a built-in switch which shorts the anode and filament connection should the filament break. See the spring in the top of the tube / valve. The anode (Pin 5) current does not vary much with change in anode voltage but does vary very much with changes in filament voltage. 
Dimensions (WHD)
incl. pins / tip
32 x 90 x 32 mm / 1.26 x 3.54 x 1.26 inch
Weight 35 g / 1.23 oz
  av44_typical.png
  AV44: Radiotronics, Ausgabe 09/1960
Daniel Consales
 
av44.jpg
AV44: Own collection.
Stuart Irwin

 
av44_sock.png
AV44: Radiotronics, Ausgabe 09/1960
Daniel Consales

 
av44_p1.png
AV44: Radiotronics, Ausgabe 09/1960
Daniel Consales


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