Labels Milestones
BackR1, R2, R23, R24 R3, R21, R27, R28 R4, R6, R7, R30, R31 Switch, dual pole triple throw, 3 position switch, SP3T K switch triple-pole double-throw DPDT spdt ON-ON D Push button switch, generic, separate symbols, four pins D Push button switch OFF-(ON CMOS General Purpose Timer, 555 compatible, PDIP-8"/>