Antique radios, Old Time Radios
BT31
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Country:
Switzerland
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| Identical to |
BT31
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| Base |
Noval, 9 pin miniature (USA pico-9) B9A
Top contact with a cap.
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| Filament |
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| Description |
Kaltkatoden-Leistungsschaltröhre (Arcotron), arbeitet im Bogenentladungsgebiet.
Bereitschaftsspannung: 300 VDC; 220 VAC
Daueranodenstrom: 0,3 A
Periodischer Anodenstrom: 10 A
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| Information source |
Schweizer Elektronenröhren 1917-2003, Willi E. Seite 110
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Just Qvigstad
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