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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 battery triode was designed to have the filament powered by an accumulator and the anode circuits powered by a dry cell stack.
This is a small signal amplifier valve and has external metalising as a screen. The valve is of low impedance and low gain. The CV equivalent is CV1050.
The balloon envelope is 33 mm in diameter and, excluding the B4 base pins, is 64 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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