With 26-AWG wire, the maximum single-layer winding is 29 turns for the T37-6 toroid 2. Allowing for adjustability, an inductor of 20 turns was wound and tested.

In allowing more turns per single layer of windings, TIGHTpak toroids have up to three times more inductance, are up to 50% smaller, run up to 60% cooler, and are more EMI friendly than multi ...