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HL210

Sensibly equivalent to:
AR4 CV1303 CV3500 PM1HF
    
Extras ▼

 

The Osram HL210 was first introduced in 1928 and is a general purpose triode.
The etching on the face of the envelope is easy to read but hard to photograph as it is quite feint.
The etching on the dome is feint but with enhancement can be seen as brown. To the naked eye the lettering appears as a uniform grey.
The balloon envelope is 41 mm in diameter and, excluding the B4 base pins, is 76 mm tall.
References: Datasheet & 1043. Type HL210 was first introduced in 1929.

 

Pin Connections
B4
1
2
3
4
a
g1
f
f

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
ra
gm
2.0
0.1
150
28k
0.5
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated June 09, 2012.
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