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Tube type: |
Transmitting Tetrode, air cooled |
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Tube ID = 21383
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| Identical to |
4-400A
= QB4/1100GA
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| Similar
Tubes |
4-400B (other shape (e.g. bulb, size))
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| Base |
OTHER TUBEBASE in general
Top contact with a cap
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| Filament |
-: Direct /
If: 14.1 Ampere /
Vf 5 Volts /
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| Tube prices |
0 Tube prices (visible for members
only)
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| Literature |
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William I. Orr, The Radio Handbook 15th Edition
Götz Linss
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O.F.
Otto Frosinn
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Valvo,Senderöhren, 1983
Anonymous 15 Collector
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Valvo,Senderöhren, 1983
Anonymous 15 Collector
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