His Electric fence controllers ...

Email from Fi-HUHM, Nov. 5, 2008 (His Critical listening skills for audio professionals, 3rd printing, 2008: page [v]: The late F. Alton Everest (1909-2005) was the most respected audiologist in the professional recording industry; his revered works and courses produced more than twenty books and editions in his lifetime, including The master handbook of acoustics, Audio technique for the home and studio, and How to build a small budget recording studio from scratch ... with 12 tested designs. As the supervisor of UC San Diego's Listening Section Laboratory during WWII, Everest conducted underwater sound research experiments for the war effort. For 25 years he produced science films for the renowned Moody Institute of Science, followed by years teaching and working as a highly sought after audio consultant")

Biog. resource center (AMWS), Nov. 6, 2008 (Everest, F(rederick) Alton; b. Nov. 22, 1909, Gaston, Ore.; D. Sc., Wheaton Col, 1959; acoust consult, 1973-1988)

SSDI, Nov. 6, 2008 (Everest, F. A.; b. Nov. 22, 1909; d. Sept. 3, 2005, Santa Barbara, Calif.)