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TS *(optional) SIP socket, 2.54 mm, 1x10 Pin socket, 2.54 mm, 1x4 Pin header, 2.54 mm, 1x7 | | | | | | | | Tayda | A-3486 or A-3487\*\*\* | | | | J5, J12, J13 | 3 | 1 | 1 | LM358 | Low-Power, Dual Operational Amplifiers, DIP-8/SOIC-8/TO-99-8 | | | | | | | S3 | 1 | 2_pin_Molex_header | 2 ; DRILL file {KiCad 5.1.10-88a1d61d58~90~ubuntu20.04.1} date Sat Aug 7 10:22:31 2021 e6b834b08c Fix floating pin for Pause (J19/J18); the schematic is incorrect - the current 12-position rotary switches are actually 2p6t, which means only six different step counts are available until the replacement arrives Wiring SW15 (once/stop) and cascade out is easier done via skywiring; only one cross-board wire that shouldn't be over about 20mm in diameter at the time of the work preferred for.

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