Quantity   Component name
6 × Nixie Tube
1 × Neo-6M - u-blox
1 × HDC1080
1 × DS3231 Clock and Timer ICs / Real-Time Clocks
1 × HM-13
1 × FP5138 180v Module https://item.taobao.com/item.htm?spm=a230r.1.14.32.ebb2eb2AlQ00b&id=537315927478&ns=1&abbucket=4#detail
7 × TLP521 Opto and Fiber Optic Semiconductors and ICs / Optocouplers and Optoisolators
1 × SN74141 Logic ICs / Decoders, Encoders, Multiplexers, Demultiplexers