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PM22A

Information - Help 
ID = 3978
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Vacuum Pentode   Power/Output 
Identical to PM22A = 22A = K70B = PT2A = 220Pen
Similar Tubes
Normally replaceable-slightly different:
  KL1_5pin ; PN2 ; TC432
Other base:
  PM22AA ; PM22A_4-pin ; PM22A_UY
Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Eoo)
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.15 Ampere / Direct / Battery =
Description

Available also with 4 pin base and side terminal (1935 data book)

 
Text in other languages (may differ)
Information source History of the British Radio Valve to 1940   p. 186
Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia
606_6.png PM22A: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad 		pm22a_characteristics.png
PM22A: My schematic collection.
Pier Antonio Aluffi
Usage in Models 2= 1929 ; 1= 1931? ; 3= 1931 ; 2= 1932? ; 3= 1932 ; 1= 1933?? ; 7= 1933? ; 6= 1933 ; 1= 1934?? ; 3= 1934? ; 10= 1934 ; 2= 1935?? ; 4= 1935? ; 16= 1935 ; 2= 1936?? ; 4= 1936? ; 14= 1936 ; 1= 1937?? ; 4= 1937? ; 17= 1937 ; 1= 1938?? ; 1= 1938? ; 15= 1938 ; 2= 1939? ; 6= 1939 ; 4= 1940
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):132

Collection of

Robert Gillespie (USA)
Lindsay Shepherd (AUS)
Gwyn Griffiths (GB)
Tor Steinnes (N)
Gerhard Eisenbarth (D)
Collection of a member from D
 
pm_22a.jpg

PM22A
 
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