[KB6NU] The flip-flop turns 100 this week
KB6NU's Ham Radio Blog /////////////////////////////////////////// The flip-flop turns 100 this week Posted: 31 May 2018 11:38 AM PDT http://feedproxy.google.com/~r/kb6nu...m_medium=email I got this from the slowspeedwire Yahoo group: IEEE Spectrum published an article earlier this week that describes how the original flip-flop circuit was designed and built. According to the article, Re-creating the First Flip-Flop, the circuit was first invented in 1918 and used as a trigger relay for radio designs. An article in the December 1919 issue of The Radio Review popularized the circuit, which used two vacuum tubes! The post The flip-flop turns 100 this week appeared first on KB6NUs Ham Radio Blog. |
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