While the “should have used a 555” meme is strong around these parts, we absolutely agree with [Kelvin Brammer]’s decision to make this 555-shaped plug-in replacement for the 555 timer chip using discrete parts, rather than just a boring old chip.
This is a companion discussion topic for the original entry at https://hackaday.com/2024/03/11/a-555-shaped-discrete-component-555/