BOM
Control board
| Ref | Qty | Value | Description | Vendor |
| A1 | 1 | Arduino Nano | Arduino Nano v3.0 | link |
| J1 | 1 | Conn_02x07 | Connector, double row, 02×07, 2.54 mm | |
| J2 | 1 | DS-241B | DC Barrel Jack with an internal switch | link |
| J3, J8, J9 | 3 | Conn_01x02 | Connector, single row, 01×02, 2.54 mm | |
| J4 | 1 | Conn_01x06 | Connector, single row, 01×06, 2.54 mm | |
| J5 | 1 | Conn_01x03 | Connector, single row, 01×03, 2.54 mm | |
| J6, J7 | 2 | Conn_01x15 | Connector, single row, 01×15, 2.54 mm | |
| R1, R2, R3 | 3 | 10k | Resistor, SMD1206 | |
| SW1, SW2, SW3 | 3 | TC-0208-X | Push button switch, two pins | link |
| U1 | 1 | RTC_DS3231 | RTC Module wit DS3231 | link |
| 4 | M3 screw | Plastic screw M3x??mm | ||
| 4 | PN-3K | Plastic nut M3 | link |
Digitron board
| Ref | Qty | Value | Description | Vendor |
| C1, C2, C3, C4, C5, C6 | 6 | 10n | Unpolarized capacitor, THT, L4.6mm W2.0mm P2.50mm | |
| C7, C8 | 2 | 22u/16V | Polarized capacitor (tantal), THT, D5.5mm P2.50mm | |
| C9, C10 | 2 | 100n | Unpolarized capacitor, THT, L4.6mm W2.0mm P2.50mm | |
| J1 | 1 | Conn_02x07 | Connector, double row, 02×07, 2.54 mm | |
| NE1, NE2 | 2 | NE-2H | Neon lamp NE-2H (R781B) | link |
| NX1, NX2, NX3, NX4 | 4 | Z573M | Digitron (nixie) | |
| Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15, Q16, Q17, Q18, Q19, Q20, Q21, Q22, Q23, Q24, Q25, Q26, Q27, Q28, Q29, Q30, Q31, Q32, Q33, Q34, Q35, Q36, Q37, Q38, Q39, Q40, Q41, Q42, Q43 | 43 | MPSA42 | 0.5A Ic, 300V Vce, NPN High Voltage Transistor, TO-92 | link |
| R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27, R28, R29, R30, R31, R32, R33, R34, R35, R36, R37, R38, R39, R40, R43, R46, R49 | 43 | 33k | Resistor, SMD1206 | |
| R41, R45 | 2 | 10k | Resistor, SMD1206 | |
| R42, R44, R48, R51 | 4 | 2k | Resistor, THT | |
| R47, R50 | 2 | 68k | Resistor, THT | |
| U1, U2 | 2 | 74HC595 | 8-bit serial in/out Shift Register 3-State Outputs, DIP16 | link |
| U3, U4, U5, U6 | 4 | CD4028BE | Decoder 4 to 10 lines, DIP16 | link |
Assembly
| Qty | Value | Description | Vendor |
| 1 | SMTS-102 | On/off switch | link |
| 1 | box | IKEA Dragan 402.226.07 bamboo box, use the lid of the bigger box | link |
| 3 | TC-0209-X | Push button switch To replace SW1, SW2, SW3 when mounted in a box | link |
| 1 | DS-026B | Power supply coaxial connector to panel, plug 5,5mm/2,1mm | link |
| 4 | KDI6M3X22W | Spacer, nylon, length 22 mm, M3 F/F | link |
| 4 | KDR03 | Spacer, polystyrene, length 3.6 mm, tube | link |
| 4 | Screw | M3x16mm, countersunk head | |
| 4 | Spacer | Spacer, length: 8mm, thread: M3, screw length: 8mm, outer width: 6mm, material: polyamid screw and thread | link |
| AC/DC-CL12/1.2-K | Power supply adaptor; 12VDC; 1,2A; 5.5/2.1mm | link |