Antique radios, Old Time Radios
FG17
| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
Top contact with a cap.
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| Was used by |
Industrial |
| Filament |
Vf 2.5 Volts / If 5 Ampere / Direct |
| Description |
This tube is a negative control mercury-vapor thyratron for use where it is desired to actuate the tube 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. It is listed on page 48 of "The Story of Electronic Development at the General Electric Company" Dated Dec 10th, 1930. Early versions of the GE tube had a nickel plated UX base with porcelain insulation. Later tubes (1945) have Bakelite bases. Also made in Italy by Fivre.
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| Weight |
90 g / 3.17 oz |
| Information source |
Tube Lore (II) p. 80 182 & 211
- - Manufacturers Literature Data sheet ETI118 April 1945
Taschenbuch zum Röhren-Codex 1948/49
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FG17: Manufacturer's Literature
Emilio Ciardiello
More ...
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Just Qvigstad
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FG17: Manufacturer's Literature
Emilio Ciardiello
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
Collection of
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