Radio-Katalog, Röhren, Halbleiter etc.
IP3
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Land:
Niederlande
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| Identisch mit |
IP3
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| Ähnliche |
Mehrere Unterschiede oder anderer Art:
C443
; RES364
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| Sockel |
Europasockel B5 (Eu O, F, O5A) 5-St 1928
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| Heizung |
Uf 4 Volt / If 1 Ampere / Halbindirekt / Spezifizierte Spannung ~ = |
| Beschreibung |
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 IP3 was a plug-in replacement for the C443 etc.
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| Literatur |
Universal Vade-Mecum, Electron Valves and Semiconductor Devices group 205
- - Manufacturers Literature 1932
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IP3
Peter den Boer † 2025
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Just Qvigstad
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IP3: own collection
Peter den Boer † 2025
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Sammlung von
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| Datenkonformität |
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