Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 311
Fig. 1. Simplex Electric Foot Warmer The economic problem for the largeheaters is the same as for the small ones,but, by the same token, the advantagesare just as pronounced. These heatersare especially desirable for heating roomson chilly mornings and nights in springor autumn. Attention should be… … Simplex Radiator for 110-Volt Circuit
Electrical engineering
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
