This is the DIY KIT for IN-12 Nixie Tubes Clock on a Clear Acrylic Stand. Board is NCM 109. I solved the problem : D 12 was dry soldered – that meant no specific digit was being lit and all were lighting up – solved it by close inspection of circuit. Have a second NCM109 board where I have a flashing red power LED – not sure what to do. If i desolder the FET is is solid – resolder it and the power LED flashes – Any thoughts ?
