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Quad operational amplifier, DIP-14 A-1135 2 8 pin DIP socket A-001 1 14 pin connector, https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F215079%7FY1%7Fpdf%7FEnglish%7FENG_CD_215079_Y1.pdf%7F215079-4 connector TE-Connectivity Micro-MaTch female-on-board top-entry thru-hole 10 pin connector, https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F215079%7FY1%7Fpdf%7FEnglish%7FENG_CD_215079_Y1.pdf%7F215079-4 connector TE-Connectivity Micro-MaTch Vertical 1-215079-6 8-215079-16 TE-Connectivity Micro-MaTch female-on-board top-entry thru-hole 4 pin connector, https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F215079%7FY1%7Fpdf%7FEnglish%7FENG_CD_215079_Y1.pdf%7F215079-4 connector TE-Connectivity Micro-MaTch female-on-board top-entry thru-hole 14 pin DIP socket A-004 4 Knobs Screws, nuts, and spacers (see [build notes](build.md | | | J5, J12, J13 | 3 | 2N3904 | 0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92 R16, R17, R19, R20 | 4 | 100k | Resistor | | | | | | | | | Tayda | A-1605 | | Tayda | A-826 | | Tayda | A-2939 | | Tayda | A-826 | | S1 | 1 | 10nF | Film capacitor | | | | | | | | | R4, R6, R7, R30, R31 Switch, dual pole double throw, separate symbols Quad Low-Noise JFET-Input Operational Amplifiers, DIP-8/SOIC-8/TO-99-8 | | | | | R30 | 1 nF | Unpolarized capacitor | | | Tayda | A-1157 or A-2425 | | | R24, R26, R28 | 3 | A1M | \*\*Potentiometer, 16 mm vertical pots. You can obtain a copy of Copyright (c) 2009 The Go Authors. All rights reserved. Permission is hereby granted, free of charge, to any person obtaining a copy Copyright (c) 2019 Keith Pitt, Tim Lucas, Michael Pearson Permission is hereby granted, free of charge, to any person obtaining a copy MIT License Copyright (c) 2016 Sandro Santilli Permission is hereby granted, free of charge, to any person obtaining a copy MIT License Copyright (c) 2024 Adam Shaw Permission is hereby granted, free of charge, to any person obtaining a copy of the Covered Software is free to improve on this and/or Hagiwo's quantizer, if going digital ** https://note.com/solder_state/n/nde97a0516f03 and https://www.youtube.com/watch?v=op_DhPr2goc ** arduino nano clone (atmega 328p), 12-bit dac (mcp4726) and small amounts of supporting hardware Microcontroller.

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