In 1931 Radio Manufacturing Engineers (RME) was founded by E.G. Shalkhauser (W9CI) and Russ M. Planck (W9RGH).

In 1943 the company moved to 313-315 Bradley Ave, Peoria, Ill

In 1935 to 306 First Ave., Peoria, Ill

After the World War II, RME merged with Electro-Voice, Buchanan, Michigan

Planck stayed with the company and supervised the design of a new series of shortwave receivers under the name of Radio Mfg. Engineers, Div. of Electro-Voice Inc.

In 1962 RME Division has been taken over by G.C. Electronics of Rockford, Ill.