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Tube type: |
Double Triode Frequency converter |
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Tube ID = 21209
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| Identical to |
B109
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| Base |
Noval, B9A
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| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Indirect /
-: Series, AC/DC /
If: 0.1 Ampere /
Vf 26 Volts /
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| Literature |
Röhren-Taschen-Tabelle 14.A, (Franzis RTT)
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RTT Schwandt
Günther Stabe
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