Antique radios, Old Time Radios
5674
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Country:
United States of America (USA)
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| Identical to |
5674
= GL-5674
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| Similar
Tubes |
Other characteristic (electr. data):
FP-54
; GL-5740
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| Base |
6-Pin-Base U6A, old, USA
Top contact with a cap.
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| Was used by |
Technology / Measurement |
| Filament |
Vf 3.8 Volts / If 0.09 Ampere / Direct / Battery = |
| Description |
Dual balanced amplifier: single cathode and space charge grid, dual control grid and anode; thoriated tungsten filament cathode. The tube was intended as electrometer amplifier working in a Wheatstone bridge circuit, given in the data sheet.
Typical operating values:
- 6 V anode voltage
- 20 uA anode current
- 5 V space grid voltage
- -3.5 V control grid voltage
- 5 x 10exp-15 A grid current
- 1.2 amplification factor
5764 is quite similar to 5760 / FP54 with higher electrode assembly and approximately doubled electrode surface
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| Information source |
- - Manufacturers Literature
Tube Lore (II) p. 93
Tube Lore (I)
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5674: Manufacturer's Literature
Emilio Ciardiello
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5674: Manufacturer's Literature
Emilio Ciardiello
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Just Qvigstad
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5674: Manufacturer's Literature
Emilio Ciardiello
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