Labels Milestones
BackSpacers (see build notes) 1 SIP socket, 2.54 mm, 1x4 Pin header, 2.54 mm, 1x4 | | | Tayda | A-1121 | | Tayda | A-2939 | | | | | S1 | 1 | ICM7555xP | CMOS General Purpose Timer, 555 compatible, PDIP-8 Quad operational amplifier, DIP-14"/>