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C1CSensibly equivalent¶ to:
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The C1C was the Philips C1 fitted with a B4 base. It is a barretter current stabiliser where the active component is an iron wire in a hydrogen atmosphere. The glass clearly says Made in Holland.Barretters were a continental invention, being used by the Germans to control valve filament currents during WWI.
A close-up of the coiled wire element.The wide glass tube envelope is 37 mm in diameter and, excluding the B4 base pins, is 119 mm tall.References: Data-sheet Type C1C was first introduced in 1934. See also 1934 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 |  nc | nc | f | f |
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Absolute Maximum Operating Conditions¶
Stabiliser | Vh | Ah | 
| 120 | 0.2 |
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Updated January 08, 2022.
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