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 ...

Anyone who has ever wound a toroidal coil by hand can tell you that it’s not exactly a fun job. Even with the kinds of coils used in chokes and transformers for ham radio, which generally have ...

Products in this line of custom- and standard-design toroidal power and isolation transformers come in factory-installed weatherproof-steel enclosures. The enclosures come in six standard sizes ...

Next, a trio of Hungarian engineers—Ottó Bláthy, Miksa Déri, and Károly Zipernowsky—improved the design by building a toroidal (doughnut-shaped) transformer, which they exhibited in 1885.

We demonstrate spiral, solenoid, and toroidal inductors, a toroidal transformer and inductor with advanced geometries that cannot be produced by wire winding technology. The inductors are embedded ...

One Powerful Decade: Core geometry affects transformer performance, so the designer must be aware of the characteristics of the typical types: E cores, round center leg E cores, toroids and pot cores.

With the Quad preamp, Quad has formulated a new circuit design with a low-noise custom toroidal transformer and numerous smoothing capacitors for improved sonic performance. The new 33 offers four ...