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PM1HL

Information - Help 
ID = 14610
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Triode, vacuum   Universal 
Identical to PM1HL = TB282
Similar Tubes
Normally replaceable-slightly different:
  210HL_Cossor ; CV3641 ; HR210 ; VT50
Other characteristic (electr. data):
  PM1 ; PM1A ; PM1HF ; PM1LF
Other base:
  PM1HL_UX
Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.1 Ampere / Direct / Battery =
Description

Medium Impedance Triode. Ri=22.5k, Gm=1.2mA/V at Va=150, Ia=2.3mA, Vg=-1.5V.
Clear or metallised bulb.

The 1933 Mullard data optimistically calls it "Non Microphonic Detector" and "...Complete freedom from microphony"
It is also therein suggested as being suitable for the RF and IF stages.

 
Information source L'ABCDaire des lampes de TSF des jeunes années   p. 79
History of the British Radio Valve to 1940   p. 166
- - Manufacturers Literature
Taschenbuch zum Röhren-Codex 1948/49
1_102.png PM1HL: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad 		pm1hl_techdat01.png
PM1HL: Mullard Valves 1936
Peter Hoddow
Usage in Models 1= 1926 ; 1= 1929?? ; 3= 1929 ; 3= 1930 ; 23= 1931 ; 1= 1932?? ; 12= 1932? ; 6= 1932 ; 4= 1933?? ; 18= 1933? ; 6= 1933 ; 3= 1934?? ; 6= 1934? ; 8= 1934 ; 1= 1935?? ; 2= 1935? ; 5= 1935 ; 3= 1936? ; 4= 1936 ; 2= 1937 ; 2= 1939 ; 1= 1940
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):115

Collection of

John Koster (NL)
Antonio Marra (I)
 
pm1hl.jpg

PM1HL
 
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