Radios antiguas y Radios de Colección
B_Moorhead-Shaw
País:
Estados Unidos
|
|
Idéntica a |
B_Moorhead-Shaw
= TypeB
= VT-Class-I
|
Válvulas similares |
Otra base:
B_Moorhead-Europe
|
Primera serie |
1919
Saga of the Vacuum Tube, Tyne page 172
|
Válvulas Predecesoras |
VT-1
|
Base |
UV-Base (4 Pins+Bayonet, USA 1914 WE)
|
Usada en |
Radio/TV-reception etc. |
Filamento |
Vf 4 Volt / If 0.7 Ampere / Direct / Battery = |
Descripción |
Information from www bill01a.com: This sample of the B power tube is unmarked and has a Shaw base. This tube may have been an electrical prototype of the British B fitted with an American base for ease of testing. This base was made by the Shaw Insulating Company, which was associated with Moorhead Laboratories
Family - according to Tyne: Type A is similar to SE-1444, also with hard vacuum for amplification. Type B is a similar tube, but with a low vacuum for operation as a detector with 18-40 volts on the anode. Type C is similar to Type A, except that the grid is constructed of 22 turns of molybdenum wire with a pitch of 0.3 inch, instead of nickel - and for anode voltages of 80 - 500 volts. Type D is the unbased Electron Relay (ER) previously made by Moorhead. Type E is the British standard Type R, similar to Type A, but with spherical bulb and European standard four-pin base. Type F is similar to Type E, but with a low vacuum like the Type B. Type G is similar to Type C, but has a spherical bulb and an European standard four-pin base. It is the same as the British standard Type B tube.
|
Dimensiones (Alt,Ancho,Prof.) incl.pins/tip |
44 x 102 x 35 mm / 1.73 x 4.02 x 1.38 inch |
Literatura |
Saga of the Vacuum Tube, Tyne Pages 146, 170-175, 178, 300 & 331
|
|
B_Moorhead-Shaw: own collection
Peter den Boer
|
Just Qvigstad
|
|
Número de
modelos en Radiomuseum.org con esta
válvula:88
|
|
|
|
[rmxtube-en]
Cumplimiento de datos |
Más información |
|
|