Labels Milestones
BackR4, R12, R13 | 3 | 10k | Resistor | | | S2 | 1 | 1uF | Film capacitor | | C3, C4, C10 | 1 | SW_SPDT | Switch, single pole double throw, separate symbols | | | | C1, C11 | 3 | 4.7k | Resistor | | Tayda | A-1157 or A-2425 | | | | J3, J4, J5 | 3 | 1 | ICM7555xP | CMOS General Purpose Timer, 555 compatible, PDIP-8"/>