Pierre-Loup M.You may have seen it coming : just arrange any odd number of the previous circuit in chain linking inputs to outputs.
With three of them chained together, the circuit has a measured period of around 0.2us, which is a frequency of 5MHz.
3 - Creating a ring oscillator from resistors and transistors.
A project log for One hertz sculpture
Slowing down a ring oscillator enough to make it tick seconds
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