an analog video colorizer effect - adapted from a rob schafer design
Rob Schafer designed the original version of this circuit and shared it online in 2020.
It was updated and adapted to pcb by cyberboy666 as open-source hardware with help from the scanlines community – changes included adding PAL, extra color controls and switching to parts that are cheaper & more available
now it can purchased from underscores.shop/two_point_one_colorizer or built from source