Table of contents
- Intro
- Controller
- Parts For Testing
- Breadboard
- Labor
- Oscilloscope
- Eurorack Case
- Accessories
- Power
- SP1
- mki x es.EDU System
- DIY Eurorack Case
- Sequencer
- Voltage Controlled Oscillator (VCO)
- Voltage Controlled Filter (VCF)
- Envelope Generator (EG)
- Voltage Controlled Amplifier (VCA)
- Mixer
- Noise/Sample & Hold (S&H)
- Wavefolder
- Output
- EDU DIY Drums Bundle
- Kick Drum
- Hi-Hat
- Snare Drum
- Compressor
- Bucket Brigade Delay (BBD)
Intro
I am a fan of Look Mum No Computer, In one of his videos he mentioned about the website Music From Outer Space and the book Make: Analog Synthesizers which I have brought and I am currently reading through.
Controller
I wanted something that I could connect up to a computer via USB to use software synths like VCVRack or for connecting up to Garageband and maybe later Logic Pro. I also wanted something that is able to control hardware synths with Pitch CV, Velocity CV and Gate control or via MIDI inputs and outputs. The Keystep Pro provides all 3, via USB, MIDI and mono 3.5mm output jacks.
| Item | Quantity | Received | Notes |
|---|
| KeyStep Pro | 1 | 1 | The Special Black Edition I purchased also came with 14 CV/Gate cables for connecting to the eurorack modules |
Parts For Testing
Breadboard
To test eurorack modules, I originally planned on building them up on a breadboard, powered by 2 9V Batteries. However, I have recently purchased the Erica Synths EDU DIY Labor Full Kit that I will use to power and test the modules.
Videos © 2021 Moritz Klein
Sourcing Parts
| Item | Quantity | Received | Notes |
|---|
| 9V Battery | 2 | 2 | |
| 9V Battery Connector | 2 | 6 | |
| Breadboard | 1 | 1 | |
| Digital Multimeter | 1 | 1 | |
| Solid Core Wire Jumper Kit | 1 | 2 | |
Labor
Video © 2024 Moritz Klein
Basic Kit Parts
Basic Kit contains the Quantity needed for building 1 unit.
PCB
| Item | Quantity |
|---|
| EDULAB Main PCB | 1 |
| EDUPRTP Utility Section Panel | 1 |
| EDUPNLF Expansion Slot Panel | 1 |
| EDUPNLB Breadboard Panel | 1 |
| EDUPNLM Modular I/O Panel | 1 |
| EDUPOT Potentiometer/Socket adapter PCB | 24 |
| EDUSW Switch/Button adapter PCB | 16 |
Connectors
| Item | Quantity |
|---|
| 16-pin female header | 8 |
| 4-pin female header | 36 |
| 8-pin female header | 3 |
| 40-pin male connector | 4 |
| 830 Point Breadboard | 1 |
Fasteners
| Item | Quantity |
|---|
| 3x11mm Spacer (female/female) | 6 |
| 3x11mm Spacer (female/male) | 2 |
| 3x23mm Spacer (female/male) | 2 |
| 3x23mm Spacer (female/female) | 6 |
| M3X6 Phillips Screw (Black) | 28 |
Potentiometers
| Item | Quantity |
|---|
| Vertical Trim Potentiometer (B1M) | 2 |
| Vertical Trim Potentiometer (B250K) | 1 |
| Vertical Trim Potentiometer (B100K) | 5 |
| Vertical Trim Potentiometer (B50K) | 1 |
| Vertical Trim Potentiometer (B10K) | 2 |
| Vertical Trim Potentiometer (B5K) | 1 |
| Vertical Trim Potentiometer (B1K) | 1 |
Misc
| Item | Quantity |
|---|
| Mono Audio Jack | 5 |
| SPDT Switch | 1 |
| SPTT Switch | 1 |
| 3mm Red LED | 2 |
| Plywood base | 1 |
| Breadboarding cable set | 1 |
| 12V 1A wall wart | 1 |
Full Kit Parts
Full Kit also contains the Quantity of additional parts.
Capacitors
| Item | Quantity |
|---|
| Ceramic Capacitor (1uF) | 2 |
| Ceramic Capacitor (470nF) | 1 |
| Ceramic Capacitor (100nF) | 5 |
| Ceramic Capacitor (10nF) | 2 |
| Ceramic Capacitor (2.2nF) | 2 |
| Ceramic Capacitor (1nF) | 5 |
Diodes
| Item | Quantity |
|---|
| Signal Diode (1N4148) | 10 |
Integrated Circuits
| Item | Quantity |
|---|
| Op Amp Dual (TL072) | 2 |
| Op Amp Quad (TL074) | 2 |
| Hex Schmitt-Trigger Inverter (CD40106) | 2 |
| Decade Counter (CD4017) | 2 |
| Shift Register Dual (4015) | 2 |
| Transistor NPN (BC548) | 10 |
| Transistor PNP (BC558) | 10 |
Resistors
| Item | Quantity |
|---|
| Metal Film resistor (1M) | 5 |
| Metal Film resistor (470K) | 2 |
| Metal Film resistor (100K) | 10 |
| Metal Film resistor (82K) | 2 |
| Metal Film resistor (68K) | 5 |
| Metal Film resistor (47K) | 5 |
| Metal Film resistor (33K) | 5 |
| Metal Film resistor (27K) | 2 |
| Metal Film resistor (22K) | 5 |
| Metal Film resistor (14K) | 2 |
| Metal Film resistor (10K) | 10 |
| Metal Film resistor (4.7K) | 2 |
| Metal Film resistor (2K) | 5 |
| Metal Film resistor (1K) | 10 |
Misc
❎ Assembly
Assembly Instructions are available in the User Manual on the Erica Synths Website
Oscilloscope
I also plan on building a cheap DIY Oscilloscope kit into a 3D printed Eurorack Module. I did not want to spend a lot of money on a decent oscilloscope, I just need one "good enough" to help with visualising waveforms and to get an idea of what output a module is producing.
Sourcing Parts
| Item | Quantity | Received | Notes |
|---|
| DIY 2.4" inch LCD Digital Oscilloscope | 1 | 1 | |
| MT3608 DC-DC Boost Converter | 1 | 1 | |
Printing Parts
Eurorack Case
I plan on 3D Printing a case to house the Oscilloscope Module, EDU DIY Drums Bundle and any extra modules I make using N8 Synth Prototype Kits.
Accessories
Sourcing Parts
| Item | Quantity | Received | Notes |
|---|
| Befaco Bananuts (Black) | 25 | 25 | |
| Befaco Bananuts (Red) | 25 | 25 | |
| Befaco Bananuts Wrench Tool | 1 | 1 | |
| Befaco Squid Cable | 1 | 1 | |
| Eurorack Blank Panels (Thonk Logo) | 1 x 2HP | 1 | |
| Eurorack Blank Panels (Circuit Design) | Set of 7 | Set of 7 | Available on Modular Synth Lab |
Power
Sourcing Parts
| Item | Quantity | Received | Notes |
|---|
| 16-16 pin Power Cable | 5 | 10 | 30cm length |
| Befaco Passive Bus | 1 | 1 | |
| Mean Well RT65B Power Supply | 1 | 1 | Available on Modular Synth Lab |
SP1
I have seen a 3D Printed Eurorack case that I would like to make called The SP1 by Spillerphoto.com on Printables
Sourcing Parts
| Item | Quantity | Received | Notes |
|---|
| M3 Nylon Screws | 40 | 42 | Nylon can prevent Rack Rash |
| M3 Threaded Strip Insert 84HP | 4 (6 including dust cover) | 6 | Available on Modular Synth Lab |
Printing Parts
Case
Dust Cover
mki x es.EDU System
DIY Eurorack Case
Parts
Kit contains the Quantity needed for building 1 unit, except the parts for the optional +5V Power Supply
Case
| Item | Quantity |
|---|
| 12V 1A AC/DC Wall Adapter | 1 |
| 84HP Eurorack Case | 1 |
| DC Socket | 1 |
| Power Switch | 1 |
Power Supply
| Item | Quantity |
|---|
| 2x8 Pin Sockets | 14 |
| 5mm Green LED | 1 |
| 5mm Red LED | 1 |
| EDU DIY PSU PCB | 1 |
| Electrolytic Capacitor (100uF) | 1 |
| Electrolytic Capacitor (220uF) | 2 |
| KF301 Screw Terminal (5mm pitch) | 2 |
| Metal Film resistor (3K) | 2 |
| Mornsun DC/DC converter | 1 |
| Resettable Fuse (RB300-30) | 1 |
| Schottky diode (1N5819) | 1 |
Optional: +5V Power Supply
| Item | Quantity |
|---|
| 5mm Red LED | 1 |
| Electrolytic Capacitor (10uF) | 2 |
| Film Capacitor (0.1uF) | 2 |
| Metal Film resistor (1K) | 1 |
| Voltage Regulator (78M05) | 1 |
✅ Assembly
Assembly Instructions are available in the User Manual on the Erica Synths Website
Sequencer
Videos © 2022 Moritz Klein
Parts
Kit contains the Quantity needed for building 1 unit.
PCB
| Item | Quantity |
|---|
| EDUSEQ4 PCB | 1 |
| EDUSEQ4 Front Panel | 1 |
Capacitors
| Item | Quantity |
|---|
| Electrolytic Capacitor (47uF) | 2 |
| Film Capacitor (1uF) | 1 |
| Ceramic Capacitor (100nF) | 5 |
| Ceramic Capacitor (1nF) | 1 |
Diodes
| Item | Quantity |
|---|
| Schottky Diode (SB140) | 2 |
| Signal Diode (1N4148) | 15 |
Integrated Circuits
| Item | Quantity |
|---|
| Transistor NPN (2N3904) | 5 |
| Transistor NPN (BC547) | 1 |
| Op Amp Quad (TL074) | 1 |
| Decade Counter (CD4017) | 1 |
| 14 Pin DIP Sockets | 1 |
| 16 Pin DIP Sockets | 1 |
Potentiometers
| Item | Quantity |
|---|
| Vertical Trim Potentiometer (B250K) | 1 |
| Vertical Trim Potentiometer (B100K) | 5 |
| PCB Mount Trim Potentiometer (5K) | 1 |
| PCB Mount Trim Potentiometer (2K) | 2 |
Resistors
| Item | Quantity |
|---|
| Metal Film resistor (100K) | 14 |
| Metal Film resistor (68K) | 1 |
| Metal Film resistor (51K) | 1 |
| Metal Film resistor (47K) | 1 |
| Metal Film resistor (18K) | 1 |
| Metal Film resistor (6.8K) | 1 |
| Metal Film resistor (4.7K) | 1 |
| Metal Film resistor (1K) | 7 |
| Metal Film resistor (200R) | 1 |
| Metal Film resistor (10R) | 2 |
Misc
| Item | Quantity |
|---|
| SPDT Switch | 5 |
| SPTT Switch | 1 |
| 3mm Red LED | 5 |
| Mono Audio Jack | 5 |
| 10 Pin Power Header | 1 |
✅ Assembly
Assembly Instructions are available in the User Manual on the Erica Synths Website
Voltage Controlled Oscillator (VCO)
Videos © 2020 Moritz Klein
Parts
Kit contains the Quantity needed for building 1 unit, Received is extra quantities I have purchased to build additional units.
PCB
| Item | Quantity | Received | Notes |
|---|
| EDUVCO3 PCB | 1 | | |
| EDUVCO3 Front Panel | 1 | | |
| 6HP Eurorack Prototype Kit | | 5 | Available on N8Synth |
Capacitors
| Item | Quantity | Received | Notes |
|---|
| Electrolytic Capacitor (47uF) | 2 | 10 | |
| Film Capacitor (1uF) | 1 | 10 | |
| Ceramic Capacitor (100nF) | 5 | 100 | |
| Film Capacitor (2.2nF) | 1 | 20 | |
Diodes
Integrated Circuits
| Item | Quantity | Received | Notes |
|---|
| Transistor NPN (BC548) | 1 | 100 | |
| Transistor PNP (BC558) | 1 | 100 | |
| Op Amp Quad (TL074) | 1 | 10 | |
| Hex Schmitt-Trigger Inverter (CD40106) | 1 | 10 | |
| 14 Pin DIP Sockets | 2 | 10 | |
Potentiometers
| Item | Quantity | Received | Notes |
|---|
| PCB Mount Trim Potentiometer (1K) | 1 | 10 | |
| Vertical Alpha Potentiometer (B100K) | 1 | 20 | With Aluminum Knobs |
| Vertical Trim Potentiometer (B100K) | 2 | 8 | |
| Vertical Trim Potentiometer (B250K) | 1 | 5 | Ordered Alpha Potentiometer With Aluminum Knobs instead |
| Vertical Trim Potentiometer (B1M) | 1 | 5 | Ordered Alpha Potentiometer With Aluminum Knobs instead |
Resistors
| Item | Quantity | Received | Notes |
|---|
| Metal Film resistor (1M) | 2 | 100 | |
| Metal Film resistor (100K) | 9 | 100 | |
| Metal Film resistor (68K) | 2 | 100 | |
| Metal Film resistor (47K) | 1 | 100 | |
| Metal Film resistor (33K) | 1 | 100 | |
| Metal Film resistor (14K) | 1 | | Using 47K + 20k in parallel instead |
| Metal Film resistor (1.5K) | 1 | 100 | |
| Metal Film resistor (1K) | 2 | 100 | |
| Metal Film resistor (10R) | 2 | 100 | |
Misc
| Item | Quantity | Received | Notes |
|---|
| 10K thermistor | 4 | 20 | |
| Mono Audio Jack | 5 | 30 | |
| 10 Pin Power Header | 1 | 10 | |
✅ Assembly
Assembly Instructions are available in the User Manual on the Erica Synths Website
Voltage Controlled Filter (VCF)
Videos © 2020 Moritz Klein
Parts
Kit contains the Quantity needed for building 1 unit, Received is extra quantities I have purchased to build additional units.
PCB
| Item | Quantity | Received | Notes |
|---|
| EDUVCF1 PCB | 1 | | |
| EDUVCF1 Front Panel | 1 | | |
| 6HP Eurorack Prototype Kit | | 5 | Available on N8Synth |
Capacitors
| Item | Quantity | Received | Notes |
|---|
| Electrolytic Capacitor (47uF) | 2 | 10 | |
| Film Capacitor (1uF) | 2 | 10 | |
| Ceramic Capacitor (100nF) | 6 | 100 | |
| Film Capacitor (1nF) | 5 | 20 | |
Diodes
Integrated Circuits
| Item | Quantity | Received | Notes |
|---|
| Op Amp Quad (TL074) | 2 | 10 | |
| 14 Pin DIP Sockets | 2 | 10 | |
Potentiometers
| Item | Quantity | Received | Notes |
|---|
| PCB Mount Trim Potentiometer (50K) | 1 | 10 | |
| Vertical Trim Potentiometer (B100K) | 4 | 8 | Will substitute 3 with Alpha Potentiometer With Aluminum Knobs |
| Vertical Alpha Potentiometer (B100K) | 1 | 20 | |
Resistors
| Item | Quantity | Received | Notes |
|---|
| Metal Film resistor (100K) | 5 | 100 | |
| Metal Film resistor (68K) | 2 | 100 | |
| Metal Film resistor (33K) | 8 | 100 | |
| Metal Film resistor (27K) | 2 | 100 | |
| Metal Film resistor (14K) | 1 | | Using 47K + 20k in parallel instead |
| Metal Film resistor (2K) | 2 | 100 | |
| Metal Film resistor (1K) | 3 | 100 | |
| Metal Film resistor (10R) | 2 | 100 | |
Misc
| Item | Quantity | Received | Notes |
|---|
| Mono Audio Jack | 4 | 30 | |
| 10 Pin Power Header | 1 | 10 | |
✅ Assembly
Assembly Instructions are available in the User Manual on the Erica Synths Website
Envelope Generator (EG)
Videos © 2021 Moritz Klein
Parts
Quantity is for 1 unit, kit contains enough parts for 2 units and Received is extra quantities I have purchased to build additional units.
PCB
| Item | Quantity | Received | Notes |
|---|
| EDUENV1 PCB | 1 | | |
| EDUENV1 Front Panel | 1 | | |
| 6HP Eurorack Prototype Kit | | 5 | Available on N8Synth |
Capacitors
| Item | Quantity | Received | Notes |
|---|
| Electrolytic Capacitor (47uF) | 2 | 10 | |
| Film Capacitor (1uF) | 2 | 10 | |
| Ceramic Capacitor (100nF) | 8 | 100 | |
Diodes
Integrated Circuits
| Item | Quantity | Received | Notes |
|---|
| Transistor NPN (BC548) | 1 | 100 | |
| Op Amp Dual (TL072) | 3 | 10 | |
| 8 Pin DIP Sockets | 3 | 15 | |
Potentiometers
| Item | Quantity | Received | Notes |
|---|
| Vertical Trim Potentiometer (A1M) | 2 | 4 | |
| Vertical Trim Potentiometer (A100K) | 1 | 2 | |
Resistors
| Item | Quantity | Received | Notes |
|---|
| Metal Film resistor (100K) | 10 | 100 | |
| Metal Film resistor (47K) | 1 | 100 | |
| Metal Film resistor (10K) | 1 | 100 | |
| Metal Film resistor (1K) | 2 | 100 | |
| Metal Film resistor (470R) | 1 | 100 | |
| Metal Film resistor (100R) | 1 | 100 | |
| Metal Film resistor (10R) | 2 | 100 | |
Misc
| Item | Quantity | Received | Notes |
|---|
| SPDT Switch | 1 | 1 | |
| 3mm Red LED | 1 | 1 | |
| Mono Audio Jack | 3 | 30 | |
| 10 Pin Power Header | 1 | 10 | |
✅ Assembly
Assembly Instructions are available in the User Manual on the Erica Synths Website
Voltage Controlled Amplifier (VCA)
Videos © 2021 Moritz Klein
Parts
Kit contains the Quantity needed for building 1 unit, Received is extra quantities I have purchased to build additional units.
PCB
| Item | Quantity | Received | Notes |
|---|
| EDUVCA2 PCB | 1 | | |
| EDUVCA2 Front Panel | 1 | | |
| 6HP Eurorack Prototype Kit | | 5 | Available on N8Synth |
Capacitors
| Item | Quantity | Received | Notes |
|---|
| Electrolytic Capacitor (47uF) | 2 | 10 | |
| Ceramic Capacitor (100nF) | 6 | 100 | |
Diodes
Integrated Circuits
| Item | Quantity | Received | Notes |
|---|
| Transistor NPN (BC548) | 4 | 100 | |
| Op Amp Dual (TL072) | 2 | 10 | |
| 8 Pin DIP Sockets | 2 | 15 | |
Potentiometers
| Item | Quantity | Received | Notes |
|---|
| PCB Mount Trim Potentiometer (100K) | 2 | 10 | |
| Vertical Trim Potentiometer (B100K) | 2 | 20 | Ordered Alpha Potentiometer With Aluminum Knobs instead |
Resistors
| Item | Quantity | Received | Notes |
|---|
| Metal Film resistor (100K) | 12 | 100 | |
| Metal Film resistor (82K) | 2 | 100 | |
| Metal Film resistor (20K) | 6 | 100 | |
| Metal Film resistor (10K) | 6 | 100 | |
| Metal Film resistor (1K) | 2 | 100 | |
| Metal Film resistor (100R) | 4 | 100 | |
| Metal Film resistor (10R) | 2 | 100 | |
Misc
| Item | Quantity | Received | Notes |
|---|
| Mono Audio Jack | 6 | 30 | |
| 10 Pin Power Header | 1 | 10 | |
✅ Assembly
Assembly Instructions are available in the User Manual on the Erica Synths Website
Mixer
Videos © 2022 Moritz Klein
Parts
Quantity is for 1 unit, kit contains enough parts for 1 unit and Drums Bundle contans enough for a second. Received is extra quantities I have purchased to build additional units.
PCB
| Item | Quantity | Received | Notes |
|---|
| EDUMIX2 PCB | 1 | | |
| EDUMIX2 Front Panel | 1 | | |
| 6HP Eurorack Prototype Kit | | 5 | Available on N8Synth |
Capacitors
| Item | Quantity | Received | Notes |
|---|
| Electrolytic Capacitor (47uF) | 2 | 10 | |
| Ceramic Capacitor (100nF) | 6 | 100 | |
Diodes
Integrated Circuits
| Item | Quantity | Received | Notes |
|---|
| Op Amp Dual (TL072) | 2 | 10 | |
| 8 Pin DIP Sockets | 2 | 15 | |
Potentiometers
| Item | Quantity | Received | Notes |
|---|
| PCB Mount Trim Potentiometer (20K) | 1 | 10 | |
| Vertical Trim Potentiometer (B100K) | 3 | 20 | Ordered Alpha Potentiometer With Aluminum Knobs instead |
Resistors
| Item | Quantity | Received | Notes |
|---|
| Metal Film resistor (100K) | 8 | 100 | |
| Metal Film resistor (27K) | 1 | 100 | |
| Metal Film resistor (1K) | 3 | 100 | |
| Metal Film resistor (10R) | 2 | 100 | |
Misc
| Item | Quantity | Received | Notes |
|---|
| Mono Audio Jack | 6 | 30 | |
| 10 Pin Power Header | 1 | 10 | |
🔧 Assembly
Assembly Instructions are available in the User Manual on the Erica Synths Website
Noise/Sample & Hold (S&H)
Parts
PCB
| Item | Quantity | Received | Notes |
|---|
| EDUSH2 PCB | 1 | | |
| EDUSH2 Front Panel | 1 | | |
| 6HP Eurorack Prototype Kit | | 5 | Available on N8Synth |
Capacitors
| Item | Quantity | Received | Notes |
|---|
| Electrolytic Capacitor (47uF) | 3 | 10 | |
| Film Capacitor (1uF) | 2 | 10 | |
| Film Capacitor (470nF) | 1 | | |
| Ceramic Capacitor (100nF) | 8 | 100 | |
| Film Capacitor (100nF) | 1 | | |
| Film Capacitor (5.6nF) | 2 | | |
| Film Capacitor (2.2nF) | 2 | 20 | |
| Ceramic Capacitor (1nF) | 1 | | |
| Film Capacitor (680pF) | 2 | | |
Diodes
Integrated Circuits
| Item | Quantity | Received | Notes |
|---|
| Transistor NPN (2N3904) | 1 | | |
| Transistor NPN (BC548) | 1 | 100 | |
| Transistor JFET (J113) | 1 | 10 | |
| Op Amp Dual (TL072) | 1 | 10 | |
| Op Amp Quad (TL074) | 2 | 10 | |
| 8 Pin DIP Sockets | 1 | 15 | |
| 14 Pin DIP Sockets | 2 | 10 | |
Potentiometers
| Item | Quantity | Received | Notes |
|---|
| Vertical Alpha Potentiometer (B250K) | 1 | 5 | With Aluminum Knobs |
| Vertical Trim Potentiometer (B100K) | 2 | 8 | |
Resistors
| Item | Quantity | Received | Notes |
|---|
| Metal Film resistor (1M) | 2 | 100 | |
| Metal Film resistor (470K) | 2 | | |
| Metal Film resistor (100K) | 12 | 100 | |
| Metal Film resistor (51K) | 1 | | |
| Metal Film resistor (47K) | 1 | 100 | |
| Metal Film resistor (33K) | 2 | 100 | |
| Metal Film resistor (22K) | 1 | | |
| Metal Film resistor (20K) | 1 | 100 | |
| Metal Film resistor (10K) | 1 | 100 | |
| Metal Film resistor (4.7K) | 2 | | |
| Metal Film resistor (2K) | 1 | 100 | |
| Metal Film resistor (1K) | 6 | 100 | |
| Metal Film resistor (680R) | 1 | | |
| Metal Film resistor (10R) | 2 | 100 | |
Misc
| Item | Quantity | Received | Notes |
|---|
| 3mm Red LED | 1 | 1 | |
| Mono Audio Jack | 8 | 30 | |
| 10 Pin Power Header | 1 | 10 | |
❎ Assembly
Assembly Instructions are available in the User Manual on the Erica Synths Website
Wavefolder
Videos © 2022 Moritz Klein
Parts
PCB
| Item | Quantity | Received | Notes |
|---|
| EDUWAVE1 PCB | 1 | | |
| EDUWAVE1 Front Panel | 1 | | |
| 6HP Eurorack Prototype Kit | | 5 | Available on N8Synth |
Capacitors
| Item | Quantity | Received | Notes |
|---|
| Electrolytic Capacitor (47uF) | 2 | 10 | |
| Film Capacitor (1uF) | 1 | 10 | |
| Ceramic Capacitor (100nF) | 4 | 100 | |
| Film Capacitor (2.2nF) | 2 | 20 | |
Diodes
Integrated Circuits
| Item | Quantity | Received | Notes |
|---|
| Transistor NPN (BC548) | 4 | 100 | |
| Transistor PNP (BC558) | 2 | 100 | |
| Op Amp Quad (TL074) | 1 | 10 | |
| 14 Pin DIP Sockets | 1 | 10 | |
Potentiometers
| Item | Quantity | Received | Notes |
|---|
| PCB Mount Trim Potentiometer (10K) | 1 | | |
| Vertical Trim Potentiometer (B10K) | 1 | | |
Resistors
| Item | Quantity | Received | Notes |
|---|
| Metal Film resistor (220K) | 1 | | |
| Metal Film resistor (100K) | 3 | 100 | |
| Metal Film resistor (51K) | 1 | | |
| Metal Film resistor (22K) | 1 | | |
| Metal Film resistor (20K) | 4 | 100 | |
| Metal Film resistor (10K) | 4 | 100 | |
| Metal Film resistor (1K) | 5 | 100 | |
| Metal Film resistor (10R) | 2 | 100 | |
Misc
| Item | Quantity | Received | Notes |
|---|
| Mono Audio Jack | 3 | 30 | |
| 10 Pin Power Header | 1 | 10 | |
❎ Assembly
Assembly Instructions are available in the User Manual on the Erica Synths Website
Output
Parts
PCB
| Item | Quantity | Received | Notes |
|---|
| EDUOUT1 PCB | 1 | | |
| EDUOUT1 Front Panel | 1 | | |
| 6HP Eurorack Prototype Kit | | 5 | Available on N8Synth |
Capacitors
| Item | Quantity | Received | Notes |
|---|
| Electrolytic Capacitor (47uF) | 2 | 10 | |
| Film Capacitor (1uF) | 2 | 10 | |
| Ceramic Capacitor (100nF) | 6 | 100 | |
| Ceramic Capacitor (22pF) | 2 | | |
Diodes
Integrated Circuits
| Item | Quantity | Received | Notes |
|---|
| Transistor NPN (BD139) | 2 | | |
| Transistor PNP (BD140) | 2 | | |
| Op Amp Dual (TL072) | 2 | 10 | |
| 8 Pin DIP Sockets | 2 | 15 | |
Potentiometers
| Item | Quantity | Received | Notes |
|---|
| Vertical Trim Potentiometer (B10K) | 2 | | |
| Vertical Trim Potentiometer (B100K) | 2 | 8 | |
Resistors
| Item | Quantity | Received | Notes |
|---|
| Metal Film resistor (200K) | 2 | | |
| Metal Film resistor (100K) | 6 | 100 | |
| Metal Film resistor (30K) | 2 | | |
| Metal Film resistor (10K) | 4 | 100 | |
| Metal Film resistor (3.6K) | 4 | | |
| Metal Film resistor (1K) | 6 | 100 | |
| Metal Film resistor (470R) | 2 | 100 | |
| Metal Film resistor (47R) | 2 | | |
| Metal Film resistor (10R) | 2 | 100 | |
| Metal Film resistor (2R) | 4 | | |
Misc
| Item | Quantity | Received | Notes |
|---|
| Mono Audio Jack | 2 | 30 | |
| Stereo Audio Jack | 2 | 1 | |
| 10 Pin Power Header | 1 | 10 | |
❎ Assembly
Assembly Instructions are available in the User Manual on the Erica Synths Website
EDU DIY Drums Bundle
Kick Drum
Video © 2023 Moritz Klein
Parts
Kit contains the Quantity needed for building 1 unit, Received is extra quantities I have purchased to build additional units.
PCB
| Item | Quantity | Received | Notes |
|---|
| EDUKICK2 PCB | 1 | | |
| EDUKICK2 Front Panel | 1 | | |
| 6HP Eurorack Prototype Kit | | 5 | Available on N8Synth |
Capacitors
| Item | Quantity | Received | Notes |
|---|
| Electrolytic Capacitor (47uF) | 2 | 10 | |
| Film Capacitor (220nF) | 1 | | |
| Ceramic Capacitor (100nF) | 6 | 100 | |
| Film Capacitor (15nF) | 3 | | |
| Film Capacitor (10nF) | 1 | | |
| Film Capacitor (3.3nF) | 1 | | |
Diodes
Integrated Circuits
| Item | Quantity | Received | Notes |
|---|
| Transistor NPN (BC548) | 3 | 100 | |
| Transistor PNP (BC558) | 2 | 100 | |
| Op Amp Dual (TL072) | 2 | 10 | |
| 8 Pin DIP Sockets | 2 | 15 | |
Potentiometers
| Item | Quantity | Received | Notes |
|---|
| Vertical Alpha Potentiometer (B1M) | 1 | 5 | With Aluminium Knobs |
| Vertical Trim Potentiometer (B250K) | 1 | | |
| Vertical Trim Potentiometer (A100K) | 1 | 2 | |
| Vertical Trim Potentiometer (B100K) | 2 | 8 | |
| Vertical Trim Potentiometer (B50K) | 1 | | |
| Vertical Trim Potentiometer (B10K) | 1 | | |
Resistors
| Item | Quantity | Received | Notes |
|---|
| Metal Film resistor (1M) | 2 | 100 | |
| Metal Film resistor (470K) | 1 | | |
| Metal Film resistor (120K) | 1 | | |
| Metal Film resistor (100K) | 5 | 100 | |
| Metal Film resistor (47K) | 2 | 100 | |
| Metal Film resistor (39K) | 1 | | |
| Metal Film resistor (33K) | 2 | 100 | |
| Metal Film resistor (14K) | 1 | | Using 47K + 20k in parallel instead |
| Metal Film resistor (10K) | 2 | 100 | |
| Metal Film resistor (2K) | 1 | 100 | |
| Metal Film resistor (1K) | 3 | 100 | |
| Metal Film resistor (10R) | 2 | 100 | |
Misc
| Item | Quantity | Received | Notes |
|---|
| Mono Audio Jack | 4 | 30 | |
| 10 Pin Power Header | 1 | 10 | |
❎ Assembly
Assembly Instructions are available in the User Manual on the Erica Synths Website
Hi-Hat
Video © 2023 Moritz Klein
Parts
Kit contains the Quantity needed for building 1 unit, Received is extra quantities I have purchased to build additional units.
PCB
| Item | Quantity | Received | Notes |
|---|
| EDUHHAT2 PCB | 1 | | |
| EDUHHAT2 Front Panel | 1 | | |
| 6HP Eurorack Prototype Kit | | 5 | Available on N8Synth |
Capacitors
| Item | Quantity | Received | Notes |
|---|
| Electrolytic Capacitor (47uF) | 2 | 10 | |
| Film Capacitor (1uF) | 1 | 10 | |
| Ceramic Capacitor (470nF) | 1 | | |
| Ceramic Capacitor (100nF) | 13 | 100 | |
| Ceramic Capacitor (10nF) | 1 | | |
| Ceramic Capacitor (2.2nF) | 1 | | |
| Ceramic Capacitor (1nF) | 2 | | |
| Ceramic Capacitor (330pF) | 2 | | |
| Ceramic Capacitor (100pF) | 1 | | |
Diodes
Integrated Circuits
| Item | Quantity | Received | Notes |
|---|
| Transistor NPN (BC548) | 4 | 100 | |
| Transistor PNP (BC558) | 2 | 100 | |
| Op Amp Dual (TL072) | 3 | 10 | |
| Hex Schmitt-Trigger Inverter (CD40106) | 1 | 10 | |
| 8 Pin DIP Sockets | 3 | 15 | |
| 14 Pin DIP Sockets | 2 | 10 | |
Potentiometers
| Item | Quantity | Received | Notes |
|---|
| Vertical Trim Potentiometer (B250K) | 1 | | |
| Vertical Alpha Potentiometer (B100K) | 1 | 5 | With Aluminium Knobs |
| Vertical Trim Potentiometer (B10K) | 2 | | |
Resistors
| Item | Quantity | Received | Notes |
|---|
| Metal Film resistor (1M) | 1 | 100 | |
| Metal Film resistor (820K) | 1 | | |
| Metal Film resistor (470K) | 1 | | |
| Metal Film resistor (120K) | 1 | | |
| Metal Film resistor (100K) | 18 | 100 | |
| Metal Film resistor (82K) | 1 | 100 | |
| Metal Film resistor (68K) | 1 | 100 | |
| Metal Film resistor (56K) | 1 | | |
| Metal Film resistor (51K) | 1 | | |
| Metal Film resistor (47K) | 3 | 100 | |
| Metal Film resistor (39K) | 2 | | |
| Metal Film resistor (33K) | 2 | 100 | |
| Metal Film resistor (22K) | 1 | | |
| Metal Film resistor (10K) | 1 | 100 | |
| Metal Film resistor (4.7K) | 1 | | |
| Metal Film resistor (1K) | 3 | 100 | |
| Metal Film resistor (680R) | 1 | | |
| Metal Film resistor (100R) | 1 | 100 | |
| Metal Film resistor (10R) | 2 | 100 | |
Misc
| Item | Quantity | Received | Notes |
|---|
| Mono Audio Jack | 5 | 30 | |
| 10 Pin Power Header | 1 | 10 | |
❎ Assembly
Assembly Instructions are available in the User Manual on the Erica Synths Website
Snare Drum
Video © 2024 Moritz Klein
Parts
Kit contains the Quantity needed for building 1 unit, Received is extra quantities I have purchased to build additional units.
PCB
| Item | Quantity | Received | Notes |
|---|
| EDUSNAR1 PCB | 1 | | |
| EDUSNAR1 Front Panel | 1 | | |
| 6HP Eurorack Prototype Kit | | 5 | Available on N8Synth |
Capacitors
| Item | Quantity | Received | Notes |
|---|
| Electrolytic Capacitor (47uF) | 2 | 10 | |
| Film Capacitor (1uF) | 1 | 10 | |
| Ceramic Capacitor (470nF) | 2 | | |
| Ceramic Capacitor (100nF) | 8 | 100 | |
| Film Capacitor (33nF) | 3 | | |
| Film Capacitor (10nF) | 2 | | |
| Ceramic Capacitor (2.2nF) | 2 | | |
| Film Capacitor (1nF) | 2 | 20 | |
Diodes
Integrated Circuits
| Item | Quantity | Received | Notes |
|---|
| Transistor NPN (BC548) | 5 | 100 | |
| Transistor PNP (BC558) | 2 | 100 | |
| Op Amp Dual (TL072) | 3 | 10 | |
| 8 Pin DIP Sockets | 3 | 15 | |
Potentiometers
| Item | Quantity | Received | Notes |
|---|
| Vertical Trim Potentiometer (B250K) | 1 | | |
| Vertical Trim Potentiometer (A100K) | 1 | 2 | |
| Vertical Trim Potentiometer (B100K) | 1 | 8 | |
| Vertical Trim Potentiometer (B5K) | 1 | | |
| Vertical Alpha Potentiometer (B1K) | 1 | | With Aluminium Knobs |
Resistors
| Item | Quantity | Received | Notes |
|---|
| Metal Film resistor (1M) | 2 | 100 | |
| Metal Film resistor (910K) | 1 | | |
| Metal Film resistor (470K) | 1 | | |
| Metal Film resistor (120K) | 1 | | |
| Metal Film resistor (100K) | 7 | 100 | |
| Metal Film resistor (47K) | 3 | 100 | |
| Metal Film resistor (39K) | 1 | | |
| Metal Film resistor (33K) | 2 | 100 | |
| Metal Film resistor (27K) | 1 | 100 | |
| Metal Film resistor (22K) | 5 | | |
| Metal Film resistor (10K) | 2 | 100 | |
| Metal Film resistor (1K) | 7 | 100 | |
| Metal Film resistor (470R) | 1 | 100 | |
| Metal Film resistor (330R) | 1 | | |
| Metal Film resistor (10R) | 2 | 100 | |
Misc
| Item | Quantity | Received | Notes |
|---|
| Mono Audio Jack | 5 | 30 | |
| 10 Pin Power Header | 1 | 10 | |
❎ Assembly
Assembly Instructions are available in the User Manual on the Erica Synths Website
Compressor
Videos © 2023 Moritz Klein
❎ Assembly
Assembly Instructions are available in the User Manual on the Erica Synths Website
Bucket Brigade Delay (BBD)
I have yet to purchase this module.
❎ Assembly
Assembly Instructions are available in the User Manual on the Erica Synths Website
