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1C5GT/G

Sensibly equivalent to:
1C5GT CV1805 DL35 N14
    
Extras ▼

 

The 1C5GT is an octal based audio output pentode for use with dry batteries.
The bright elliptical anode from the side.
The side rod of the previous image is the support for the filament tension spring.
The top mica disc with the filament tension springs at the base of the image. The control grid is held on copper supports. The suppressor grid is wire wound and placed close to the anode.
The wide glass tube envelope is 29 mm in diameter and, excluding the IO base pins, is 60 mm tall.
References: Datasheet, 1040 & 1043. Type 1C5GT/G was first introduced in 1941.

 

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

 

Absolute Maximum Operating Conditions
Pentode
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 October 03, 2019.
shape:wide.glass.tube construction:pinch type:pentode age:1940.1950 base:io heater:1.4v pins:8 pin:1.- pin:2.f+ pin:3.a pin:4.g2 pin:5.g1 pin:6.- pin:7.f- pin:8.-
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