Title:
Variable autotransformer
United States Patent 3368140
Inventors:
Tobey, Frederic S.
Publication Date:
02/06/1968
Export Citation:
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Assignee:
BRADY CO W H
Primary Class:
323/345
Other Classes:
323/327, 327/447, 327/582, 336/222, 361/91.7
International Classes:
G05F1/445; G05F1/10
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US Patent References:
3292127Closed circuit resistive shielding for multiwinding transformers
3263157Regulator circuit
3149296Shielded transformer
3147928Lighting device
3146392Control circuits employing unijunction transistors for firing controlled rectifiers
2839718Autotransformer voltage regulator
1914193Electrical regulating circuit
1857577Transformer
1308448N/A