Crowbar circuits have long been the go-to safeguard against overvoltage conditions, prized for their simplicity and ...
A continuity tester that indicates the resistance of, say, PCB traces with musically-related tones, whose pitch changes with ...
Over on YouTube [Lockdown Electronics] reviews an old bit of kit known as the Silicon Controlled Rectifier (SCR). Invented in the 1950s the SCR is a type of thyristor and they were popular back in ...
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