That’s the idea behind [BetaChecker’s] two-axis stepper motor, which looks like it has ... [BetaChecker] has created a platen of 288 hand-wound copper coils, each of which can be selectively ...

We’re not sure exactly what [Russ] intends to do with these coils, and by his own admission, neither is he. But it’s still pretty cool to see, and the stepper motor mods are a neat trick to ...

F. R. HAIGH has recently compared the relative advantages of magneto and coil ignition used for generating the explosions which occur in motor-car engines (Students' Quart. J. Inst. Elec.