The STP series of toroidal transformers by Signal offer VA power ranges from 100 VA to 2000 VA inclusive. These standard transformer products share common lead lengths, colors, mounting configurations and more. The STP series are designed to comply with international safety standards. (read more)

Bicron Electronics is ISO 9001-2000 Certified and has been designing and manufacturing power transformers for over 35 years. With ISO9002 Certified Asian partners, Bicron offers new low, competitive prices for higher volume, lower VA power toroids. Visit our website for more information. Transformers from 10VA to 3KVA can be manufactured to U.L., CSA, IEC, and VDE standards. (read more)

Bicron's AU/BU Series of Toroidal Power Transformers are designed for 120/240V Primary input and 6V to 120V secondary output. Many special design options are available for encapsulation, mounting, terminal strips, and additional shielding. All AU/BU Series Transformers are designed to meet CSA, IEC and VDE Standards, and are recognized under UL478. (read more)

Tranex Manufactures the custom toroidal transformers to the highest quality standards. (read more)

transformers, transformer- related parts, and toroids to the highest quality standards (read more)

Butler Winding manufactures custom toroidal transformers to match your specifications. (read more)

Toroidal transformers are the high performers among transformers. They offer the smallest size (by volume and weight), less leakage inductance, and lower electromagnetic interference (EMI). Their windings cool better because of the proportionally larger surface area. A 360 degree wound toroidal transformer has a high degree of symmetry. (read more)

Our engineers will design a custom transformer best suited to your requirements. With very low magnetic strayfield emission levels, quiet operation, low weight, small size, high efficiency, and easy assembly, our toroidal transformers will deliver the superior performance capabilities you require. (read more)

Coil Specialty Company manufactures custom toroidal transformers to match your specifications. (read more)

High quality inductors for tube applications complement PLITRON's power and output transformers. Like the other PLITRON tube audio transformers, these units are encapsulated in spun aluminum cases with textured black finish. (read more)