electrical transformers custom magnetics autotransformer ELECTRICAL TRANSFORMERS Dyco electronics is a manufacturer of electrical transformers, inductors, chokes, coils, power supplies. Design svc. Compliance to MIL-I-45208 & MIL-Q-9858. Thermal shock & environmental testing per MIL-STD-202, full qualification to MIL-PRF-27 & MIL-PRF-21038. We also have the capabilities and equipment to assemble your electrical transformers or mechanical components that are best suited for assembly outside of your facility!