Antique radios, Old Time Radios
NT98A
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Country:
Great Britain (UK)
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| Identical to |
NT98A
= CV1491
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| Predecessor Tubes |
NT98
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Successor Tubes
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CV56A
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| Base |
Wires
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| Was used by |
Radar |
| Filament |
Vf 6 Volts / If 1.2 Ampere / Half indirect |
| Description |
This is one of the four frequency selections derived from NT98.
- 3030 to 3060 MHz
- 8 A at 9.5 kV input
- 8 kW typical output pulses, 5 kW minimum.
NT98D was later listed as CV1491.
NT98 and its frequency variants are quite rare today because they were in the list of repairable tubes. When removed from service they had to be returned to a suitable repair shop to be repaired or to be scrapped for recovering precious metals, copper, tungsten and gold.
The development of the E1189 magnetron at GEC can be read at this link.
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| Information source |
-- Original-techn. papers.
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NT98A: Manufacturer's Literature
Emilio Ciardiello
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