Radio-Katalog, Röhren, Halbleiter etc.
IT103
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Land:
Niederlande
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| Identisch mit |
IT103
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| Ähnliche |
Heizdaten anders:
C443
; RES374
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| Produktionsende |
Feb.1938 |
| Sockel |
Europasockel B5 (Eu O, F, O5A) 5-St 1928
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| Heizung |
Uf 4 Volt / If 1.1 Ampere / Halbindirekt / Spezifizierte Spannung ~ = |
| Beschreibung |
This is a Thermiode, a glass tube in a shielding of nickel-iron alloy to prevent electric or magnetic interference.
To avoid the Philips penthode patent (suppressor grid connected to the filament/cathode), Tungsram, Radio Record, Marathon, Longlife and others called this kind of tubes a tetrode with penthode characteristics. In fact was the suppressor grid connected to the grid. Nevertheless, this IT103 was a plug-in replacement for the C443 etc.
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| Literatur |
Universal Vade-Mecum, Electron Valves and Semiconductor Devices group 207
- - Manufacturers Literature 1933
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IT103
Peter den Boer
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Just Qvigstad
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IT103: own collection
Peter den Boer
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| Datenkonformität |
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