Radio Antica e Radio d'epoca
UV200
| Zoccolo |
UV-Base (4 Pins+Bayonet, USA 1914 WE)
|
| Utilizzata per |
Radio/TV-reception etc. |
| Filamento |
Vf 5 Volt / If 1 Ampere / Direct / Battery = |
| Descrizione |
Tyne page 308ff brings the details of history. Here the main points only:
The first tubes RCA is marketing in 1920 are the detector tube UV200 with argon gas filling and the UV201 Amplifier. Manufacturer was General Electric (GE). Both tubes are operated with a filament current of 1 ampere at 5 volts. Both have pear-shaped bulbs and are tipped. The base has a mantle of brass with a ceramic insert in which the pins are imbedded. Cunningham is naming his as C-300 and C-301.
In 1925 (Stokes, page 17) RCA replaces the UV200 with the UX200.
In May 1926 RCA announces the UX200A as a new detector tube, replacing the UX200. The UX200A contains caesium vapor instead of argon gas of the UV200 and UX200 to get a much more stable operation and increase of sensitivity. The UX200A has a thoriated filament but is still outdated and was not being used for new models, only as replacement for the UX200 (EE).
The type number UV200 was registered by RCA as a radio trade mark with the US Government on 6th June 1922, being allocated no 155802.
Testo in altre lingue
(può variare)
|
Dimensioni
(LxAxP)
incl.pins/tip |
x 107 x 45 mm / x 4.21 x 1.77 inch |
| Peso |
49 g / 1.73 oz |
| Quotazioni |
30 Quotazioni (visibili solo per gli
associati)
|
| Bibliografia |
Saga of the Vacuum Tube, Tyne p. 308 & 309, 311 & 312, 323
Tube Lore (II) p. 25
|
|
UV200: KoBi
Konrad Birkner † 12.08.2014
|
Just Qvigstad
|
UV200: KoBi
Konrad Birkner † 12.08.2014
|
Numero
totale di modelli di Radiomuseum.org che
utilizzano questa valvola:706
Collezione di
|
|
|
Varianti
This one has also a brass base, but no tip.
|
|
|
[rmxtube-en]
| Conformità dei dati |
Ulteriori informazioni |
|
|
|
