Quantity   Component name
1 × LM2596 DC-DC Adjustable Step Down Power Supply Module <a target="_blank" rel="noopener noreferrer" href="http://www.banggood.com/3Pcs-LM2596-DC-DC-Adjustable-Step-Down-Power-Supply-Module-p-1029697.html?p=NR1115712752201408A0">http://www.banggood.com/3Pcs-LM2596-DC-DC-Adjustable-Step-Down-Power-Supply-Module-p-1029697.html?p=NR1115712752201408A0</a>
1 × NCH6100HV Adjustable High Voltage Power Supply <a target="_blank" rel="noopener noreferrer" href="http://www.ebay.com/itm/NCH6100HV-High-Voltage-DC-Power-Supply-for-Nixie-Tubes-Magic-Eye-DC85-235V-Out-/282109890851">http://www.ebay.com/itm/NCH6100HV-High-Voltage-DC-Power-Supply-for-Nixie-Tubes-Magic-Eye-DC85-235V-Out-/282109890851</a>
4 × In-12 Nixie Tube <a target="_blank" rel="noopener noreferrer" href="http://www.ebay.com/itm/6-pcs-IN-12B-12-NIXIE-TUBES-RARE-DISPLAY-INDICATOR-DIGITS-VINTAGE-LAMP-/281664135380?hash=item41947da0d4">http://www.ebay.com/itm/6-pcs-IN-12B-12-NIXIE-TUBES-RARE-DISPLAY-INDICATOR-DIGITS-VINTAGE-LAMP-/281664135380?hash=item41947da0d4</a>
1 × Raspberry Pi Zero or Pi 3
1 × 12 V power supply