MALVERN, PA — Vishay Intertechnology, Inc. (NYSE: VSH) has introduced the VOR1060M4, a 1 Form A solid-state relay designed for ... emitter with a photovoltaic diode to achieve its high performance.

As [Mic] often got requests to make high-power switching boards, he recently finally gave in and designed the one shown above based around a solid-state relay. Some of our readers that already ...

with the 1930s invention by the Russian [Oleg Losev] of an early form of tunnel diode. But there’s an earlier amplifier technology that used a solid state circuit which is largely forgotten ...