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1C5GT

Sensibly equivalent to:
1C5GT/G CV1803 DL35 N14
    
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The 1C5GT is an octal based audio output beam tetrode for use with dry batteries. This RCA valve is considerably smaller than the Mullard DL35 equivalent.
The bright anode is oval shaped and obscures the inner structure.
The wide glass tube envelope is 28 mm in diameter and, excluding the IO base pins, is 57 mm tall.
References: Data-sheet, 1040 & 1043. Type 1C5GT was first introduced in 1941. See also 1941 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
110
110
-7.5
7.8
3.5
110k
1.55
0.24W
10%
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated January 03, 2022.
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