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PM2HL

Sensibly equivalent to:
210HL CV1050 HL2K VT50
See also:
The Philips-Mullard (PM) Series
    
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The PM2HL is an amplifier triode. The electrode Voltages mark it out as a battery valve. The original PM (Philips Mullard) series of valves were oxide cathodes produced by the Azide process.
The top of the metalised envelope carries the Mullard identification. In other versions of this popular valve the lettering appears on the side and the envelope takes on balloon form.
The classic envelope is 34 mm in diameter and, excluding the B4 base pins, is 80 mm tall.
References: Datasheet & 1043. Type PM2HL was first introduced in 1938.

 

Pin Connections
B4
1
2
3
4
a
g1
f
f

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
2.0
0.1
135
-1.5
2.2
21,500
1.4
Thanks to Andy Cowley for supplying the above PDF datasheet.
Updated January 08, 2013.
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