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DL35

Sensibly equivalent to:
1C5G 1C5GT CV1803 N14
    
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The DL35 is an octal based audio output beam tetrode for use with dry batteries. This is no miniature valve so the probability is that the broadcast receivers that it was to be used with were large static pieces of equipment.
The wide glass tube envelope is 29 mm in diameter and, excluding the IO base pins, is 71 mm tall.
References: Data-sheet, 1040 & 1043. Type DL35 was first introduced in 1946. See also 1946 adverts.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
nc
f+
a
g2
g1
nc
f-
nc

 

Absolute Maximum Operating Conditions
Beam Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
Pout
D
1.4
0.1
90
90
-7.5
7.5
1.6
110k
1.55
0.24W
10%
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated January 03, 2022.
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