Antique radios, Old Time Radios
1D21
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Country:
United States of America (USA)
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| Identical to |
1D21
= 631P1
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| Similar
Tubes |
Normally replaceable-slightly different:
SN4_Strobotron
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
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| Filament |
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| Description |
Strobotron, cold cathode neon flash tube. 350V.
Text in other
languages (may
differ)
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| Tube prices |
2 Tube prices (visible for members
only)
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
Tube Lore (I)
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1D21: Manufacturer's Literature
Emilio Ciardiello
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Just Qvigstad
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1D21: Manufacturer's Literature
Emilio Ciardiello
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
Collection of
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