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HL2K

Sensibly equivalent to:
210HL CV1050 HL2 PM2HL VT50
See also:
CV1050 short entry
    
Extras ▼

 

The HL2K is a battery triode with a bright anode box and a B4 base. The original HL2 from M-OV was released in 1931 with the HL2K following in 1934. The design function was as a detector of AF voltage amplifier. The ratings are identical between the HL2 and HL2K
The wide glass tube envelope is 27 mm in diameter and, excluding the B4 base pins, is 69 mm tall.
References: Private communication, 3002 & 4001. Type HL2K was first introduced in 1934.

 

Pin Connections
B4
1
2
3
4
a
g1
f
f

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
μ
2.0
0.1
150
-3
1.75
18k
1.5
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 03, 2015.
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