Table of contents Intro Controller Eurorack Case Accessories Power SP1 Parts For Testing Breadboard Oscilloscope Erica Synths Labor EDU DIY Labor EDU DIY Labor Scope 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
Eurorack Case I plan on 3D Printing a case to house an Oscilloscope Module , EDU DIY Drums Bundle and any extra modules I make using N8 Synth Prototype Kits .
Accessories Sourcing Parts 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 Parts For Testing Breadboard To test eurorack modules, I initally built 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 going forward.
Videos © 2021 Moritz Klein
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 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
Erica Synths Labor
Introducing Sooty and Susie to the Erica Synths mascot "Tuna The Cat"
EDU DIY 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
EDU DIY Labor Scope VIDEO
Video © 2025 Moritz Klein
Parts PCB Item Quantity EDUSCP2 Main PCB 1
Connectors Item Quantity 4-pin female header 1 8-pin male header 2
❎ Assembly Assembly Instructions are available in the User Manual on the Erica Synths Website
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
The sequencer steps through a different number of voltages, selectable by a potentiometer for each step. You also have the ability to switch each step on or off via it's Gate toggle switch and to change the tempo via the Rate selector.
How It Works
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)
To make music you need something to make noise, noise is created via an oscillation at different frequencies controlled by the Coarse and Fine potentiometers.
How It Works
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)
To change the way the noise sounds you can modify it using a filter. This filter is a low pass filter known as a diode ladder VCF.
How It Works
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)
The Envelope generator shapes the amplitude of a sound over time the one in this kit is known as an ADSR envelope generator. ADSR stands for Attack, Decay, Sustain, Release. Attack is how fast the sound ramps up, Decay is how fast the sound ramps down, Sustain is how long the sound lasts for and Release is how fast the sound stops.
How It Works
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)
A Voltage Controlled Amplifier allows you to control the Gain of an input via a control voltage. It can have a few uses such as shaping the output of an envelope generator or muting a step of a sequence using the Gate of the sequencer.
How It Works
Videos © 2021 Moritz Klein
Parts Kit contains the Quantity needed for building 1 unit, and I have purchased one more as "you can never have too many VCAs". 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 How It Works
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 How It Works
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 How It Works
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 How It Works
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 How It Works
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 How It Works
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
