The steep selloff was again threatening to put the market's circuit-breaker rule in play. That dictates that a fall of 7% for the S&P 500 before 3:25 p.m. Eastern time results in a marketwide ...

The Briton crashed in sector one during his first flying lap of Q1 and was forced to watch on while title rival Max Verstappen took pole in Jeddah. Norris, along with team-mate Oscar Piastri, Max ...

Abstract: A NUMBER of bistable configurations are known which use vacuum tubes and transistors ... by using two active elements in a conventional trigger arrangement. The feedback in the circuit is ...

This is a simple LED driver circuit using two 555s and a pair of NPN/PNP transistors to drive several LEDs meant to outline a small sign. Designed with my son for a St Patrick's Day project, in KiCAD.

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