I build something out of a 555 just the other day! https://twitter.com/njcw/status/1467522736000053256 https://twitter.com/njcw/status/1467522736000053256 Its

I build something out of a 555 just the other day! https://twitter.com/njcw/status/1467522736000053256 https://twitter.com/njcw/status/1467522736000053256 Its the primary (20kV) for a tesla coil. The 555 toggles a power MOSFET which drives the primary of a car ignition coil making a nice crackly 20 kV spark. The 555 was my first introduction to electronics. I still have the 555 book my dad gave me back in the 80s!