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There are a number of these toroidal winding machines on youtube, though unfortunately I have not seen any yet that wind toroidal cores in the sizes used for general “consumer” electronics ...
The O-Core toroidal power transformer cores enable the production of transformers that are 15% smaller in size and weight than traditional toroidal transformers.
Between 3 and 40 MHz, a suitable toroid is the Micrometals T37-6. This core, which uses Carbonyl SF iron powder, has a relative permeability of 8.5 and a temperature stability of 35 ppm/°C 2.
I wound 30 turns on a toroid core, made some measurements, broke and superglued it, and made some more measurements. Using a voltage divider with a carbon resistor driven at 1 KHz, the inductance ...
Westbury, N.Y. – Sprague-Goodman Electronics has beefed up its line of surface-mount toroidal-core transformers. The newest models measure 8.5 x 6 x 4.5 mm, in a pick-and-placeable liquid-crystal ...
LP32 — a 4-1/8-inch inside diameter toroid, good for the really big AC and RF cables (again, this won’t fit over a 3-1/8-inch EIA flange, so keep that in mind when planning) LA52 — a small (1/4-inch ...
Pulse, a Technitrol Company (NYSE: TNL), a worldwide leader in electronic component and subassembly design and manufacturing, announces the industry’s first series of through-hole power bead inductors ...
Mechanically robust and shape-persistent hollow toroidal polymer microrings have been synthesized directly by thiol-ene photopolymerization of rectangular-shaped monomers with dithiols. The size ...
Milestone: On May 26th 2025, the Divertor Tokamak Test (DTT) project celebrated the completion of its first superconducting toroidal magnet.