Part NumberDescription
4504CMOS Hex Voltage-Level Shifter for TTL-to-CMOS or CMOS-to-CMOS, DIP-16/SOIC-16/TSSOP-16
MC34063AP1.5A, step-up/down/inverting switching regulator, 3-40V Vin, 100kHz, DIP-8

nixie schematic

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