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PM12M

Information - Help 
ID = 18384
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Screen-grid Tetrode   RF/IF-Stage   Controlling (mu) 
Identical to PM12M
Similar Tubes
Normally replaceable-slightly different:
  CV1041
Other base:
  PM12M_UX
First Source (s)
Sep.1933 : - - Manufacturers Literature

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Er) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.18 Ampere / Direct / Battery =
Description

Available in clear or metallised bulb (1935)
Va<150; Vg2<90; Gm=1.4mA/V at -Vg1=0; Gm=0.014mA/V at -Vg1=7.
Original documentation calls it a "Multi-Mu" valve.

 
Dimensions (WHD)
incl. pins / tip
x 130 x 45 mm / x 5.12 x 1.77 inch
Weight 54 g / 1.90 oz
Information source Taschenbuch zum Röhren-Codex 1948/49   
-- Original-techn. papers.   
 
pm12m~~1.jpg
PM12M: Frank Cuffe
Frank Cuffe

 
3_24.png
PM12M: Telefunken Werkstattbuch
Wolfgang Bauer

 
pm12m.png
PM12M: Mullard Maintenance Manual 1954
Achim Dassow


from Just Qvigstad

Usage in Models 2= 1929 ; 1= 1931? ; 5= 1931 ; 1= 1932? ; 1= 1932 ; 5= 1933? ; 5= 1933 ; 2= 1934? ; 7= 1934 ; 4= 1935

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):33


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