Radios antiguas y Radios de Colección
FG57
| Base |
UX-Base (4 Pins (2 thick, USA 1924)
Top contact with a cap.
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| Usada en |
Industrial |
| Filamento |
Vf 5 Volt / If 4.5 Ampere / Indirect |
| Descripción |
This tube is a negative control mercury vapour type for use where it is desired to activate it with a change in negative grid voltage. It requires relatively little grid power and is suitable for use in relay circuits where current flow is desired in the absence of grid excitation.
grid voltage -1.75 at anode voltage of 100 and -6.5 volts at anode voltage of 1000.
It is listed on page 48 of the "Story of Electronic Development at the General Electric Company " Dated Dec 10th, 1930
Also made in Italy by Fivre.
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Dimensiones
(Alt,Ancho,Prof.)
incl.pins/tip |
x 74 x 169 mm / x 2.91 x 6.65 inch |
| Peso |
125 g / 4.41 oz |
| Literatura |
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature
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FG57: Valvo Röhrentaschenbuch 1957
Anónimo 10 Coleccionista
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Just Qvigstad
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FG57: Manufacturer's Literature
Emilio Ciardiello
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Colección personal de
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