Quantity   Component name
4 × К561ИЕ10 (MC14520A) Two 4-bit binary counters
1 × К561ИЕ8 (CD4017) Decimal counter
2 × К561ЛА7 (CD4011) Quad two input NAND gates
2 × К561ЛН1 (CD4502) Tri state inverters
2 × CD4053 Triple two input analog multiplexers
4 × К561КП2 (CD4051) Eight input channels analog multiplexer
1 × К176ИЕ5 (k176ie5) 14 stage binary counter
1 × К155ИД1 (k155id1) High voltage binary to decimal decoder
4 × IN-12 Nixie tube
2 × IN-17 Nixie tube