Radios antiguas y Radios de Colección
R_Osram
|
País:
Gran Bretaña (GB)
|
|
| Idéntica a |
R_Osram
= RAF
= TM
|
| Válvulas similares |
Other shape (e.g. bulb type):
R_England
Substituya normalmente -diferencia peq.:
RA_Mullard
; VT3_GPO
Otra base:
VT4_GPO
|
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
|
| Usada en |
Radio/TV-reception etc. |
| Filamento |
Vf 4 Volt / If 0.65 Ampere / Direct / Battery = |
| Descripción |
copy of french TM during WW1. A "hard" tube, first made by the Osram Lamp Works September 1917. Also made in England by B.T.-H., ..Metropolitan Vickers (Cosmos), A.C.Cossor Ltd, Cryselco Electric Lamp Company, Edison-Swan, Mullard Radio Valve Company, Marconi Wireless and Telegraph, Stearn's Electric Lamp Company and H.W.Sullivan Ltd. An Osram R tube exists with a factory fitted American "Shaw"-UV base. The Tube was known as VT4 in the British Post Office. British Navy version NR12. The Osram brand was discontinued on this tube with the formation of the Marconi Osram valve Co in 1919. Late in 1925 the company used bakelite bases for the tube
Texto en otros idiomas
puede diferir
|
Dimensiones
(Alt,Ancho,Prof.)
incl.pins/tip |
x 118 x 54 mm / x 4.65 x 2.13 inch |
| Peso |
52 g / 1.83 oz |
| Precios de válvulas |
6 Precios de válvulas (visible
solo para miembros)
|
| Literatura |
-- Collector info (Sammler)
Saga of the Vacuum Tube, Tyne Pages 170-172, 217-221,380
70 Years of Radiotubes and V.
British Radio Valves - The Vintage Years: 1904-1925
|
|
R_Osram: rtt
Anónimo 10 Coleccionista
|
Just Qvigstad
|
|
Número de
modelos en Radiomuseum.org con esta
válvula:1
Colección personal de
|
|
|
|
[rmxtube-en]
| Cumplimiento de datos |
Más información |
|
|
|
