Antique radios, Old Time Radios
E1190
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Country:
Great Britain (UK)
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| Identical to |
E1190
= CV155
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| Similar
Tubes |
Other characteristic (electr. data):
CV178
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Successor Tubes
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CV55
E1458
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| Base |
Wires
Sidecontact and top contact.
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| Was used by |
Radar |
| Filament |
Vf 6.3 Volts / If 2.7 Ampere / Half indirect |
| Description |
GEC experimental code for a milli-micropup triode capable of operation up to 1.200 MHz. According to the diary of Paterson, small quantities of this tubes had been sampled as early as March 1940. Certainly early prototypes used thoriatwd-tungsten direct emitting cathodes. The oxide coated unipotential cathode must have been introduced only from May or June 1940 onwards, after Megaw had experimented with this innovative solution on E1189 No. 2.
Megaw was testing these tubes on a 25 cm experimental prototype when first samples of his E1189 cavity magnetrons were eventually available. Any further development of the 25 cm airborne radar system was then abandoned.
- Pa 50 W
- Peak emission 20 A
- Fmax 1200 MHz
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| Information source |
Babani, International Radio Tube Encyclopaedia
-- Original-techn. papers. CV155 spec sheet
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E1190: Manufacturer's Literature
Emilio Ciardiello
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