Antique radios, Old Time Radios
BY1815
Country:
Great Britain (UK)
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Brand:
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Developer: |
Métal; France (tubes) |
Tube type: |
Triode, vacuum Audio Frequency |
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Ca. 1925 up to 1945 rare. |
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Identical to |
BY1815
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Similar
Tubes |
Normally replaceable-slightly different:
B217
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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 0.1 Ampere / Direct / Battery = |
Description |
This is a low-mu tube
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Information source |
British Radio Valves - The Classic Years: 1926-1946 Supplement, p. 34
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Section 85, p. 118
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren
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BY1815: rtt
Anonymous 10 Collector
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Just Qvigstad
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Forum contributions about this tube
BY1815
Threads: 2 | Posts: 2
Hits: 2018 Replies: 0
BY1815_Metal (BY1815_Metal)
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Peter den Boer
05.Apr.11
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1
The brand is changed into Common production France because the same tube is sold under the Cyrnos, Mazda, Metal and Eta brand.
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Hits: 1925 Replies: 0
BY1815_Metal (BY1815_ETA)
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Peter den Boer
04.Apr.11
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1
The Electrical Trading Association Ltd From 1931 on. Aldwych House, Aldwych,London WC2
This company imported Mètal/Mazda (French) tubes but used there own ETA brand, but the type numbering is from Mètal/Mazda. The UNIS FRANCE logo on tubes and boxes proves that they are really made in France.
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BY1815
End of forum contributions about this tube
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