The musical instrument pickups, effects units and amplifiers designed and manufactured by Harry DeArmond and Bud Rowe and later by Steve Tosh in Toledo, Ohio, from the 1940s to the 1980s, through Rowe Industries Inc., H. N. Rowe & Company, Rowe DeArmond Inc., DeArmond Inc. and Tosh Electronics, all of Toledo, Ohio, USA.

Chicago Musical Industries’ 3-pickup, 3-switch Archtop Electric guitar fitted with DeArmond pickups

The best known versions of this instrument were marketed by Harmony – Model H75 (1960 – 1972, fixed tailpiece, yellow sunburst), Model H76 (1965 – 1972, Bigsby tremolo, yellow sunburst), Model H77 (1963 – 1972, fixed tailpiece, red sunburst) and H78 (1965 – 1972, Bigsby tremolo, red sunburst)
Versions were also marketed by Airline, Heath by Harmony (Heathkit), Regal, Silvertone, Sears & Roebuck and Truetone.

Harmony Models H75 (LHS and H78 (RHS) – the pickup type shown here was fitted on a small proportion of CMI guitars.  It has an integral chrome bezel, six individually adjustable slotted pole-pieces and four slots with a gold infill.  It was manufactured in one height only.  Different pickup heights for archtop guitars were achieved by the use of timber bases of different heights, flat on top, to match the pickup base and concave on the bottom, to match the guitar.


Silvertone Models.  These guitars are fitted with a chrome D-grille pickup with a gold foil infill and an integral chrome bezel.

Airline equivalent of Harmony H78