Posted in hardware Tagged avalanche, latch, negative resistance, single transistor, transistor ← An Easy Camera Slider Build Dark Absorbing Diodes Are No DAD Joke → ...

Few realize how close an optical coupler resembles a relay. It is so close, in fact, that one can be wired as a Run-Stop latch circuit. One advantage over the relay is that it may be turned off via a ...

They are, of course, not the only ones trying. The race to shrink electronic circuits will continue, even if and when the transistor falls by the wayside.