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CV3 rugged midget gas triode


Size This valve measures 43x15mm overall, plus leads, and has a 6 lead base

Information is needed about this valve. It is one of a series of valves introduced for proximity and other fuzes in WW2. CV3 had a nickel-magnesium alloy filament and mechanical requirements of the valve were very stringent. It was produced by GEC (from E1228). Hygrade-Sylvania and Raytheon in the US were approached for samples as was Rogers in Canada but all UK manufacture had to follow GEC's manufacturing specifications.

The valve was used in radio-operated fuzes along with CV4 and E1227, and a note suggests it may also have been used in electro-magnetic fuze setters.

(Source: Inter Services Technical Valve Committee TVC55)