Radio-Katalog, Röhren, Halbleiter etc.
R215A
| Sockel |
Peanut (WECO 1919/1920)
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| Anwender |
Radio/TV-Empfang etc. |
| Heizung |
Uf 1.1 Volt / If 0.25 Ampere / Direkt / Batterieheizung = |
| Beschreibung |
Hendrik Johannes van der Bijl (WECO, USA) developed this first WECO tube. It is also called peanut-tube for it's very small size with special base. As Type N it has been finished in 1919 and was on market as 215A in the early 20ies - for nearly a decade. H.J. van der Bijl deducted the fundamental functional relationships of triodes and by that won a post at the Western Electric Company (WECO) as Senior Research Phyicist until the publication of the book "Theory of the Thermionic Tube and its Applications" in 1920. (EE) The peanut-tube was also produced in Canada and ST&C (Standard Telephone & Cables, London) has produced the 215A as 4215A and as 4215AB with standard european socket.
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Abmessungen (BHT)
inkl. Stifte/Spitzli |
x 69 x 16 mm / x 2.72 x 0.63 inch |
| Gewicht |
10 g / 0.35 oz |
| Sammlerpreise |
3 Sammlerpreise (nur sichtbar für
Mitglieder Radiomuseum.org)
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R215A: KoBi
Konrad Birkner † 12.08.2014
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Just Qvigstad
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R215A: Datenbl. R215-A Northern Electric Comp.
Otto Frosinn
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Anzahl Modelle bei Radiomuseum.org
bestückt:13
Sammlung von
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[rmxtube-ge, noindex]
| Datenkonformität |
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