This unit was used as an interface between a radio receiver and a Fultograph picture receiving unit, such as ST 035362 and ST 029278.

Physical Description

Wooden box with metal top panel with ameter, a five pin valve socket, 2 terminals and a swich. Two leads come from the back of the box; one is terminated in a six way in-line plug, and the other terminated as five leads, each terminated by spade terminal. The six way in-line plug fits an equivalent socket in each of the Facsimile Receivers, ST 035362 and ST 029278.

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