[KB6NU] The flip-flop turns 100 this week
 

KB6NU's Ham Radio Blog

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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!





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