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C1C

Sensibly equivalent to:
CV1400
    
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A C1C is a barretter or current stabiliser. The C1C was the Philips C1 fitted with a B4 base.
Barretters were a Continental invention, being used by the Germans to control valve filament currents during WW1.
The pinch and central glass rod support for the filament.
The coiled filament is held within folds of the support struts.
A close-up view of the filament.
The wide glass tube envelope is 37 mm in diameter and, excluding the B4 base pins, is 112 mm tall.
References: Datasheet Type C1C was first introduced in 1934.

 

Pin Connections
B4
1
2
3
4
-
-
f
f

 

Absolute Maximum Operating Conditions
Stabiliser
Vh
Ah
120
0.2
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated March 03, 2018.
shape:wide.glass.tube construction:pinch type:barretter age:1930.1940 base:b4 pins:4 pin:1.- pin:2.- pin:3.f pin:4.f
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