TY - BOOK AU - Smith,Charles F. TI - Practical alternating currents and alternating current testing U1 - 621.3133 PY - 1900///] CY - Manchester PB - Scientific Pub KW - Electric testing KW - Electric transformers KW - Electric circuits KW - Electric motors, Alternating current KW - Electric currents, Alternating KW - Testing N1 - Includes index ER -