Operational amplifier, DIP-8100V 0.15A standard switching diode, DO-35 Pin header 2.54 mm spacing | | | R2, R5 | 2 | 10k | Resistor | | | | | | | | | | | | Tayda | A-1531 or A-557 | | S2 | 1 | ICM7555xP | CMOS General Purpose Timer, 555 compatible, PDIP-8"/> Dual Operational Amplifiers, DIP-14/SOIC-14"/> Dual Operational Amplifiers, DIP-14/SOIC-14"/> Switch, triple pole double throw, separate symbols K switch normally-open pushbutton push-button Side push button https://www.e-switch.com/system/asset/product_line/data_sheet/210/800U.pdf momentary / push-push button, h=15mm C&K PVA2 https://www.ckswitches.com/media/1343/pva.pdf momentary / push-push button, h=17.5mm C&K PVA1 https://www.ckswitches.com/media/1343/pva.pdf tact sw push PVA2 DPDT momentary / push-push button, h=13mm C&K PVA2 https://www.ckswitches.com/media/1343/pva.pdf right angle Surface-mount DC Barrel Jack 2mm or 2.5mm center pin, https://www.kycon.com/Pub_Eng_Draw/KLDX-0202-AC%20&%20BC.pdf power jack Consider incorporating additional LED indicators for active use of the Program in any current or future medium and for any purpose Copyright 2012-2023 Mike Bostock Copyright (c) 2014 Jeff Collins Copyright (c) 2016-2017 Uber Technologies, Inc. Permission is.