940 West Twentieth Street Los Angeles CA.
Distributor of the Super-Sensitive Oscilaudion with double filament. In July 1916 he named the tube also ThermoTron (The Thermo Tron Company). An Investigator interviewed Harry V. Roome, who turned out to be a high-school boy who reveived a limited number of tubes from a San Francisco manufacturer (Moorhead?, Cunningham?). Ref.: Tyne, Saga of the vacuum tube.