Hobart, H. M. (Henry Metcalf), 1868-1946 ed · Philadelphia, J. B. Lippincott · leaf 141
Hg. 7.—De Faria Valve It is claimed that this cooling action is suf-ficient to allow of a current density of 8 ampper sq dm of aluminium. Fig. 7 shows asection of such a valve. (Eef. La EevueElectrique, vol. vi, 1906, p. 296.) Fleming Oscillation Valve, a valvedepending for its action on the… … ^^SM Fig. a—Fleming OsoiUation Valve Edison eflfect in glow lamps. The valve con-sists of a carbon-filament glow lamp with asimple central horseshoe filament. Aroundthis filament inside the exhausted bulb isfixed a small cylinder of nickel, which is con-nected by means of a platinum wire…
Electrical engineering
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