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Ralph R. Batcher

Ralph R. Batcher, Electronic Research Engineer is the inventor of the SLF (Straight Line Frequency) Condensor. He is also the author of:

  • Radio Tubes, International Textbook Co., 1942 with Albert Hodges
  • The Electronic Engineering Handbook, Electronic Development Assc., 1944 with William Moulic
  • The Electronic Control Handbook, Caldwell – Clementys, 1946 with William Moulic

Mr. Batcher resided at 240-02, 42nd Avenue (Poplar Street) during the 1940s through the 1960s.