Catalogue de radios anciennes
R215A
| Culot |
Peanut (WECO 1919/1920)
|
| Utilisé par |
Radio/TV-reception etc. |
| Chauffage |
Vf 1.1 Volt / If 0.25 Ampère / Direct / Battery = |
| Description |
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.
|
Dimensions
(l x h x p)
incl.pins/tip |
x 69 x 16 mm / x 2.72 x 0.63 inch |
| Poids |
10 g / 0.35 oz |
| Prix |
3 Prix (visible pour membres seulement)
|
|
R215A: KoBi
Konrad Birkner † 12.08.2014
|
Just Qvigstad
|
R215A: Datenbl. R215-A Northern Electric Comp.
Otto Frosinn
|
Modèles de Radiomuseum.org avec ce composant :13
Collection de
|
|
|
|
[rmxtube-fr, noindex]
| Mentions légales |
Plus d'informations |
|
|
|
