Labels Milestones
BackDIP socket A-001 1 14 pin DIP socket | | J9 | 3 | 100R | Resistor | | S3 | 1 | | | Tayda | A-111 | | | | S1 | 1 | 4.7 uF | Polarized capacitor | | | | | | C3, C4, C11 | 2 | | | | | U2 | 1 | ICM7555xP | CMOS General Purpose Timer, 555 compatible, PDIP-8 | | U3 | 1 | SW_3PDT_x3 | Switch, single pole double throw | | R25, R27, R29 | 3 | 1nF | Film capacitor | | | | J1 | 1 | TL074 | Quad Low-Noise JFET-Input Operational Amplifiers, DIP-8/SOIC-8/TSSOP-8/VSSOP-8