Unidad documental compuesta 71 - Typescript containing preliminary specification with drawings and calculations for toroidal wave guide, no title or date

The first sentence reads 'It is assumed that a state of an ionized gas, (deuterium), has been set up in which the gas is enclosed in a toroid, the electrons have mean energies of the order of 100,000 e.v. and a certain drift velocity round the toroid'.
Included with the typescript is 1 p. ms. headed 'Proposed Experimental Model' containing a brief description of the toroid, n.d.