280

Common type USA tube/semicond. Airline, Super-Airline, Wards (tubes) - see also Montgomery Ward; Chicago, IL Argus Radio Tube Co. - see also CeCo and Continental; Providence, RI Arrow Tube Company; Springfield, MA Bamberger, L. & Co; Newark, NJ Commander Radio Tubes; (where?) Continental Corp. (Continental tube brand); Chicago, IL Echotron (tubes); (where ?) Everbest Radio Corp.; New York, NY Gold Coast, Goldblatt Bros., Inc.; Chicago, IL Hi-Test (tube brand) Hytron; Salem (MA) Hyvac; Newark Kelly Tube Co.; New York, NY Lafayette Radio & TV Corp; New York (NY) Legion (Tube brand); (Where ?) McCullough, Frederick, S. Co.; Wilkinsburg, later Sales Company; Pittsburg Paramount Radio Tube Co.; Brooklyn, NY Ray-O-Vac / Rayovac, French Battery Co.; Madison (WI) Royal Tube Co.; Pawtucket, RI Roytron (tubes) - see also Triad Television & Mfg. Co.; Pawtucket, RI Silvertone (tubes) - see also Sears; Chicago, IL Sonatron Tube Company; Chicago and New York Songbird (brand) Sparton-Cardon Tubes; Jackson MI Speed, Cable Radio Tube Corp. / Cable Supply Co.; New York and Brooklyn, NY Thorola, Winkler-Reichmann Co.; Chicago, IL Triad Television & Mfg. Co.; Pawtucket, RI