Don Smith Device Project Part 6: Ferromagnetic core, high wind primary, very interesting :)
lights even brighter & better sparks coming off L-2 🙂
Tagged: ferromagnetic
TROS – “singer”
Resp to GEN. Transistor oscillator (TROS) running from 1.5V bttry generates hi-pitch acoustic singing; interesting enough that it can oscillate (and sing, but on very fine pitch) even with 1″ gap.