Electric controllers
Subject
Subject Source: Library of Congress Subject Headings
Scope Note: Ballasts; Electric current regulators; Electric reactors; Electronic controllers; Magnetic amplifiers; Remote control; Rotating amplifiers; Programmable Sequence controllers; Voltage regulators.
Found in 1 Collection or Record:
Harvey family papers
Collection
Accession: 1211
Abstract:
Thomas William Harvey (1795-1854) was an important inventor in the arts of metalworking and metallurgy. The Harvey family papers primarily relate to Thomas William Harvey and his magnetic experiments. It also includes a biography written by his great-grandson Thomas W. Harvey (1884-1965), articles of association of the Harvey Galvanic Company, and two account books of the Harvey Electro Magnetic Company.
Dates:
1839-1940
