TROS – “transformer”
Transistor oscillator (TROS) consisting of two long ferrite toroids, running from 1.5V bttry with wounding on one toroid as around a bar, generating AC in second toroid in order to run another LED spotlite.
Transistor oscillator (TROS) consisting of two long ferrite toroids, running from 1.5V bttry with wounding on one toroid as around a bar, generating AC in second toroid in order to run another LED spotlite.