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ACXSynth MIDI2CV Bill of Materials
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Part QtyDesignatorsNote/s
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Base Parts (all formats need these parts)
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CA3140 Precision Operational Amplifier4IC1, IC2, IC3, IC4Mouser: 968-CA3140EZ -- DO NOT GET CA3140A!
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6N137 Optocoupler1IC9Mouser: 757-6N137F
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PIC16F88 Microcontroller w/ MIDI2CV firmware1IC6Included pre-programmed with PCB/kit from hexinverter.net
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MCP4822 dual 12b DAC2IC7, IC8Mouser: 579-MCP4822-E/P
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78L05 5V regulator1IC5Mouser: 512-LM78L05ACZXA
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The use of IC sockets for all integrated circuits is HIGHLY recommended.
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2N3904 NPN Transistor4Q1, Q2, Q3, Q4
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1N4148 small signal diode5D1, D2, D3, D4, D51N914 or any other small signal diode should work fine as well
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5mm LED5LED.S, LED1, LED2, LED3, LED4 I recommend diffused LEDs.
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.1uF capacitor6C3, C4, C5, C6, C7, C85mm lead spacing
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47uF electrolytic capacitor2C1, C22.5mm lead spacing, 6.3mm diameter
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220R resistor5R1, R22, R26, R31, R361/4W, 1% metal film
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470R resistor6R5, R8, R11, R14, R16, R171/4W, 1% metal film
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1k resistor5R2, R6, R9, R12, R151/4W, 1% metal film
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4.7k resistor8 R20, R21, R25, R29, R30, R34, R35, R391/4W, 1% metal film
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10k resistor3R3, R18, R191/4W, 1% metal film
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33k resistor4R4, R7, R10, R131/4W, 1% metal film
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130k resistor4R24, R28, R33, R381/4W, 1% metal film
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200k resistor4R23, R27, R32, R371/4W, 1% metal film
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10k cermet 12 turn trim pot (straight lead pattern)4P1, P3, P5, P7Mouser: 858-67WR10KLF
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22k (or 20k) cermet 12 turn trim pot (straight lead pattern)4P2, P4, P6, P8Mouser: 858-67WR20KLF
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Panel mount MIDI connector (5 pin DIN)1Mouser: 568-NYS325
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M3 machine screw and nut for MIDI connector2
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M3 machine screws (M3x35mm)4For connecting the boards together
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12mm PCB spacers8For connecting the boards together
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40pin male .1" breakaway header2For connecting the PCBs together -- broken into appropriate sections
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40pin female .1" breakaway header2NOTE: not in Mouser cart. Find these somewhere else!
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MIDI2CV PCB Set1N/Ahttp://www.hexinverter.net
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Eurorack Specific Control Board Parts (included in full eurorack kits)
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PCB Mount ON-OFF-ON toggle switch1SW.MODEMouser: 108-0044-EVX
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LED PCB spacer [OPTIONAL!]5Mouser: 593-STD240B
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3.5mm vertical mount jacks9CV1, CV2, CV3, CV4, GATE1, GATE2, GATE3, GATE4, SYNChttp://erthenvar.com/store/eurodiy/35hardware/jack35mmv
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Eurorack power cable1http://erthenvar.com/store/eurodiy/power/cable1016
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Eurorack power connector1Power
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Stuff you will need ONLY if not building eurorack:
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Assorted Panel Wire (only needed if not building eurorack)N/AN/A
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Power connector1PowerMTA-156
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PCB Mount ON-OFF-ON toggle switch (panel mount)1SW.MODE
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Jacks9CV1, CV2, CV3, CV4, GATE1, GATE2, GATE3, GATE4, SYNCTo match your format
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