Soniclair started its activity in 1934 under the name: "Soniclair: Ateliers de constructions Radio-Electriques". From 1934 till 1936 the address was 16 rue Darwin, Bruxelles. From 1936 till the end of the companies life (somewhere in the early 60ies) it was on 37 rue Plantin, Anderlecht Bruxelles. In 1950 the company changed from a SPRL into a Société Anonyme. The president of Soniclair was the brother of the MBLE's president (Manufacture Belge de Lampes Electriques).

Modelle has es mindestens von 1936 bis 1940 gegeben. Sie waren mit amerikanischen Röhren bestückt. Information aus dem Manuel de la Radio 1940 ed. G van CORTENBERGHE (ANVERS)