NOTE AM/FM Nixie Clock Radio
Minor PCB Design Mistake
I found out (after ordering the first 2 PCBs) that IO2, and IO12 are all ESP32 strap pins. My design places 10K pullup resistors on some of those ports. The simple fix when they arrive is to remove the R72 and R73 pullup resistors and use the ESP32’s internal pullup resistors to provide the same functionality.
I’ll fix this for future PCB production runs.