VCA 126 Build Guide
Assembly Instructions
The VCA 126 module has no particular build requirements not already covered in the ‘General Build Info' page.
Calibration
This module requires no calibration or tuning.
PCB Parts List
| Part Number | Quantity | Value | Name | RefDes |
| 7212-731 | 2 | 22p | 22p MLCC Capacitor | C1, C2 |
| 7212-768 | 6 | 100n | 100n MLCC Capacitor | C3, C5, C7, C8, C10, C11 |
| 7212-763 | 1 | 4n7 | 4n7 MLCC Capacitor | C4 |
| 7213-110 | 2 | 100u | 100uF 25V Electrolytic | C6, C9 |
| 7212-486 | 4 | 1N914 | D1, D2, D3, D4 | |
| 1208-010 | 1 | Flex Strip 10way | J1 | |
| 7212-301 | 1 | Eurorack | Eurorack Power | J2 |
| Pot 100k Lin PCB Angle* | P1, P2 | |||
| 7163-099 | 16 | 100k | 100k 0.25W 1% Metal Film Resistor | R1, R2, R5, R6, R7, R8, R9, R10, R13, R14, R19, R20, R26, R27, R28, R29 |
| 7163-085 | 4 | 27k | 27k 0.25W 1% Metal Film Resistor | R3, R4, R33, R34 |
| 7163-051 | 2 | 1k | 1k 0.25W 1% Metal Film Resistor | R11, R12 |
| 7163-098 | 2 | 91k | 91k 0.25W 1% Metal Film Resistor | R15, R16 |
| 7163-101 | 2 | 120k | 120k 0.25W 1% Metal Film Resistor | R17, R18 |
| 7163-081 | 2 | 18k | 18k 0.25W 1% Metal Film Resistor | R21, R24 |
| 7163-082 | 2 | 20k | 20k 0.25W 1% Metal Film Resistor | R22, R23 |
| 7163-060 | 2 | 2k4 | 2k4 0.25W 1% Metal Film Resistor | R25, R32 |
| 7163-091 | 2 | 47k | 47k 0.25W 1% Metal Film Resistor | R30, R31 |
| 7212-252 | 2 | DPDT | S1, S2 | |
| 7212-544 | 2 | TL074 | U1, U2 | |
| 7212-593 | 1 | AS3360 | U3 |
*See below for MOTM or MU Potentiometers
Module Parts List
| Description | Reference | MOTM Qty | MU Qty |
| Pot Sticky Pads | 7210-188 | 2 | 2 |
| 10mm M4 Spacers | 7210-186 | 4 | 4 |
| M4 x 14 Cap Head Screws | 7210-187 | 4 | 4 |
| Toggle Switch Dress Nut | 7210-196 | 2 | 2 |
| M3 x 8mm Stainless Panel Screws | 7212-774 | 4 | 4 |
| 14-Pin IC Socket | 7212-332 | 3 | 3 |
| Power Lead | 7216-164 | 1 | |
| M²Synth MU / MOTM Voltage Regulator / Interface | 7216-170 | 1 | |
| MOTM Front Panel | 7216-526 | 1 | |
| MOTM Back Panel | 7216-826 | 1 | |
| MU Front and Back panel | 7219-826 | 1 | |
| Main PCB | 7216-026 | 1 | 1 |
| Jack Socket PCB | 7215-724 | 1 | 1 |
| Jack Sockets | 7212-220 | 8 | 8 |
| B100k Pots Long Shaft Angled | 7300-820 | 2 | |
| B100k Pots Short Shaft Angled | 7300-821 | 2 | |
| KM20B Knobs Long Shaft | 7212-170 | 2 | |
| MU Knobs | 7212-169 | 2 | |
| Circuit Schematic | S-7216-026-c | 1 | 1 |
PCB Layout
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