I can order a 300VA toroidal transformer with any voltage from 10V to 50V, one or two secondary windings, for 167PLN, which is now about 39,18USD. These are made to order.

HF radios often use toroidal transformers and winding them is a rite of passage for many RF hackers. [David Casler, KE0OG] received a question about how they work and answered it in a recent video ...

Featuring up to 97.4 percent power efficiency and a highly efficient design using nearly 30 percent less material, the new VPT Series toroidal power transformers from Triad Magnetics ...

This line of dry-type single-phase and 3-phase low voltage (600VAC) high-power transformers is available from 5,000VA to 50,000VA with power ratings up to 200 KVA for single-phase and 150 KVA in the 3 ...

Toroidal transformers are more energy efficient. They operate at about 90 to 95 percent efficiency and can run for a very long time, anywhere from 20 to 25 years. They also are much more quiet, so you ...

The O-Core toroidal power transformer cores enable the production of transformers that are 15% smaller in size and weight than traditional toroidal transformers. The cores use a silicon steel ...

Alpha-Core introduces the Model HBC-2 turns counter, a precision instrument that accurately counts the number of turns of magnet wire in toroidal and other types of core transformers. The HBC-2 also ...

We report a fabrication technology for 3D air-core inductors for small footprint and very-high-frequency power conversions. Our process is scalable and highly generic for fabricating inductors ...

These toroidal power transformers are designed for medical applications. The transformers are available as bare toroids that can be integrated into the devices themselves or installed in enclosures ...