Hi I just joined the forum. I noticed the same glitch on my Rigol 1104 'scope. The circuit was very similar - Ben Eater's "clock" circuit on his breadboard computer (https://eater.net/bbcpu8-clock-module/). I found the discussion here interesting but the answers unsatisfying. I think I like the inductance theory and would try blocking the spike if its coming in on the power supply. I'll let you know (it is two years later now!) what I find out. I've attached the picture of the circuit from Ben's YouTube video of the clock part 1.
I will post the glitch when I get back to that location but, since it looks identical to the one discussed here, I think it is independent of the wiring, load (an LED here) and exact layout.
![ben eater clock circuit.jpg ben eater clock circuit.jpg](https://makerv2.webteractive.co/forums/data/attachments/39/39487-aa1709b4371b862a0aa7756560d11d00.jpg)
I will post the glitch when I get back to that location but, since it looks identical to the one discussed here, I think it is independent of the wiring, load (an LED here) and exact layout.
![ben eater clock circuit.jpg ben eater clock circuit.jpg](https://makerv2.webteractive.co/forums/data/attachments/39/39487-aa1709b4371b862a0aa7756560d11d00.jpg)