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1LD5

Sensibly equivalent to:
CV779
See also:
1LD5 Advert, December 1948
    
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The 1LD5 is a single diode pentode for operation from dry batteries. It was employed in broadcast radio receivers.
The wide glass tube envelope is 28 mm in diameter and, excluding the B8B base pins, is 55 mm tall.
References: Datasheet & 4059. Type 1LD5 was first introduced in 1939.

 

Pin Connections
B8B
1
2
3
4
5
6
7
8
f+
a
g2
a(d)
-
g1
-
f-

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
1.4
0.05
90
45
-0
0.6
0,1
0.95M
0.6
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated February 22, 2013.
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