Antique radios, Old Time Radios
P2_CAC
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Country:
Great Britain (UK)
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| Identical to |
P2_CAC
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.4 Ampere / Direct |
| Description |
This tube is one of the "Orpheus" series
It was built using the patented design of Cyril Holt, GB201250. Application 1922, granted 1924
A copy of the Patent can be found as a pdf at the foot of this page.
The patent design uses a single-sheet, folded vertical, open-sided U for the anode.
The grid is of similat construction using perforated metal or mesh.
In an example of this valve the grid uses metal with rectangular holes.
An example carries a paper label with the type "P2.4" rather than "P2"
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| Information source |
British Radio Valves - The Classic Years: 1926-1946 Supplement, p. 15
-- Collector info (Sammler) Original Patent copy
-- Original-techn. papers.
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P2_CAC: Fin Stewart
Fin Stewart
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Just Qvigstad
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Collection of
| Documents about this component |
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