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BackAnd spacers (see [build notes](build.md)) | | 8 | 1N4148 | 100V 0.15A standard switching diode, DO-35 | | J6 | 1 | ICM7555xP | CMOS General Purpose Timer, 555 compatible, PDIP-8 0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92"/>