Antique radios, Old Time Radios
MT17
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Country:
Great Britain (UK)
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| Identical to |
MT17
= FG17
= 5557
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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 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 exitation.
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| Information source |
Universal Vade-Mecum, Electron Valves and Semiconductor Devices group 546, p.-1143
Tube Lore (II) Page 90
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