Thinking about switch debouncing, as one does. Reminded of this article that @brouhaha shared with me once.
The COSMAC ELF kit uses the "Dual Inverter Latch" version. IBM mainframes in the 60s used the "SR Latch" version.
Nowadays you'd use a microcontroller or FPGA timer :P. Was 555 ever used for debouncing?
https://www.eejournal.com/article/ultimate-guide-to-switch-debounce-part-5/
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Yes 555 have indeed been used to debounce switches:
