About the CD4049 there are contradictional info’s. My data book from 1981 states that pin 16 is “3 to 15 V but more than at pin 1 ” and it works fine when connecting them (voltage is equal). The infos ...

Fluorescent light driver, my project No. 10 (versions 1 to 9 will be reported when I have my own homepage ready) A 12 V fluorescent lamp driver is one of the most critical circuits which you can make.

Sure, you could animate some Halloween lights using a microcontroller, some random number generation and some LEDs, and if the decorations are powered by AC, you could use some relays with your ...