E. F. Johnson Company Product. Viking Courier Amateur Transmitter. Material: metal, plastic, glass. Size: 15 1/2" W. x 9 1/2" H. x 11 1/2" Deep. Description: gray metal case; speaker at top, bottom and sides; black plastic dials on front; gauges behind glass covering; electrical cord at back; four feet at bottom. Glass covered gauge at top left numbered 100, 200, 300, 400 and 0, 50, 100, 150, 200; E.F. Johnson Company logo in middle. Black dial middle left labeled: "Meter, Grid, B Plate, Grid, C Plate"; indicator light labeled "Plate." Two silver metal switches at bottom left labeled: "On, Plate" and "On, Fil." Glass covered gauge in center labeled: "0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100." Large black dial with silver switch below, labeled: "Band." Three dials along right side: "Coupling" and "Grid Tuning." Black print on case: "Johnson Viking Courier"; E. F. Johnson Company logo below.
Waseca business: E.F. Johnson Co.; E.F. Johnson Company; E.F. Johnson Corporate Headquarters; E.F. Johnson Company Corporate Headquarters; E.F. Johnson Co. Corporate Headquarters; E. F. Johnson Co.; E. F. Johnson Company; E. F. Johnson Corporate Headquarters; E. F. Johnson Company Corporate Headquarters; E. F. Johnson Co. Corporate Headquarters. The Waseca E.F. Johnson Company museum closed the summer of 2015. John S. Oblak was the E.F. Johnson Company museum curator and donated items to the WCHS collection.