Coil and Toroid Winding
Accurate Electro Industries, APW Co., Inc., Armature Coil Equipment, Ashley America Inc., Automatic Windings, B. M. P. and Equipment Co., Bachi Company, Bae Yon Electrical Industrial Co. Ltd., Broomfield, Coiltek
Hirst Magnetic Instruments Ltd.
Manufacturer of magnetising, demagnetising, magnet calibration and magnet processing and magnetic measurements equipment.
Northern Technology and Testing
Offers independent testing of dissolved gases, DGA, PCE, PCB, furan, metals and transformer fluid analysis for the electrical power industry, from Sacramento, California.
TJ/H2b Analytical Services, Inc.
Offers analysis and consulting in diagnostic testing of oil, gas and insulating materials used in high-voltage electrical equipment. International contacts from their base in Sacramento, California.
Vasavi Electronics
Fabricates automatic test equipment for transformers, coils , relays and cables.