Antique radios, Old Time Radios
NL-5559/FG-57
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Country:
United States of America (USA)
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| Identical to |
NL-5559/FG-57
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| Similar
Tubes |
Other shape (e.g. bulb type):
5559
; 5559/FG-57
; FG57
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| 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 5 Volts / If 4.5 Ampere / Half indirect |
| Description |
This NL prefix is used for this 5559 FG-57 tube made by National Electronics.
This tube is a negative control mercury vapour type 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.
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Dimensions (WHD)
incl. pins / tip |
2 x x mm / 0.08 x x inch |
| Weight |
142 g / 5.01 oz |
| Information source |
- - Manufacturers Literature
-- Collector info (Sammler)
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NL-5559/FG-57: Fin Stewart
Fin Stewart
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Just Qvigstad
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NL-5559/FG-57: Manufacturere's literature
George Papaiz
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