DIY Parts Locator and Useful Links
As a Modular DIY enthusiast, we know how hard it is to outsource parts and components. Sometimes you can spend hours upon hours scouring the internet looking for one little diode or transistor to complete your BOM (Bill of Materials).
We were tired of having to go back and forth trying to easily locate the DIY parts we needed, so we have put together a list of links that will help you find what you are looking for. If you are a supplier or a DIY parts dealer and would like to be listed on this directory, please feel free to contact us.
(Make sure to bookmark this page, as this list will be ever revolving and updated).
Table of Contents

General Links
The links below are considered general links because they are broad and when in doubt, its easy to just jump to these places to check on parts and components. Prices will vary from region to region so be aware of this upon ordering your supplies.
- Ebay – https://ebay.com
- Mouser – https://www.mouser.com
- Tayda – https://www.taydaelectronics.com
- Small Bear Electronics – http://smallbear-electronics.mybigcommerce.com
- Synthrotek – https://store.synthrotek.com/Extras
- Synthcube – https://synthcube.com/cart/synth-diy/parts
- Modular Addict – https://modularaddict.com/parts/synth-diy-parts
- THONK – https://www.thonk.co.uk
- Element 14/Newark – https://www.newark.com/?COM=element14_store_Home
- RS-Online – https://www.rs-online.com
- DIGIKEY – https://www.digikey.com
- BitsBox – https://www.bitsbox.co.uk
- RadioShack – https://www.radioshack.com
- Music From Outer Space (MFOS) – http://musicfromouterspace.com

Calculators and Reference Materials
Knowledge is key they say and it’s important that we all strive to gain more. The links below (no particular order) are excellent to bookmark if you are needing reference material or calculators for various components.
- Voltage Divider, LED and Resistor Calculator – (Digikey)
- Small Outline Transistor Dimensions – – (Wikipedia)
- Capacitor Conversion Chart – (justradios)
- Surface Mount Nomenclature and Packaging – (TopLine)
- List of Integrated Circuit (IC) dimensions – (Wikipedia)
- Eurorack Panel Measurements – (Doepfer)
- Cutout Resistor Wheel Tool – (Synthrotek)
- 4 Band Resistor Color Code Calculator and Chart – (Digikey)
- Online Resistor Color Guide – (Synthrotek)
- Capacitor Codes and Colors – (Electronic Tutorials)
- Preferred Values For Resistors and Capacitors – (North Coast Synthesis Ltd)
- SPST, SPDT and DPDT Switches Demystified – (MFOS)
- LED Polarity – (SparkFun)

Resistors
- SMT/SMD – (Mouser)
- SMD Chip – (Tayda)
- Through Hole – (Mouser)
- 1/4W Through Hole – (Tayda)
- Fixed Value Through Hole – (Newark Electronics)

Potentiometers
- General – (Mouser)
- General – (Tayda)
- Sliders (great for your ARP 2600, etc) – (Mouser)
- Trimmers SMD – (Mouser)
- Trimmer Through Hole – (Mouser)
- Linear Through Hole – (Tayda)
- Log Through Hole – (Tayda)
- General Pots – (Newark)
- General Pots – (Synthcube)
- Common Eurorack Pots – USA – (Modular Addict)
- Common Eurorack Pots – UK – (THONK)
- Common Eurorack Pots – USA – (Synthrotek)
Capacitors
- Ceramic Disc – (Mouser)
- Ceramic Disc – (Tayda)
- Film – (Mouser)
- Polyester Mylar Film – (Tayda)
- Tantalum – (Mouser)
- Electrolytic – (Mouser)
- Electrolytic – (Tayda)
- Multilayer Ceramic Capacitors MLCC – SMD/SMT – (Mouser)
- SMD ceramic chip – (Tayda)
- General Caps – (Newark)
- Common Eurorack Caps – USA – (Synthrotek)
Semi-Conductors
Transistors
- Various Transistors – (Synthrotek)
- Various Transistors – (Mouser)
- General Transistors – (Tayda)
- 2N seriesTransistors – (Tayda)
- BC series Transistors – (Tayda)
- JFET and MAT – (Synthcube)
- Matched Transistor Pairs – UK – (THONK)
- Matched Transistor Pairs – USA – (Modular Addict)
Lamps and LEDs
- Various LEDs – (Synthrotek)
- General Incandescent Lamps – (Newark)
- Multiple Type LEDs (RadioShack)
- Various LEDs (Electron.com)
- General LEDs (Mouser)
- General LEDs (Tayda)
Connectors and Jacks
- General – (Mouser)
- Buchla Tiny Jacks – (Mouser)
- 3.5mm Plugs & Jacks – (Tayda)
- 6.35mm – 1/4″ Plugs & Jacks – (Tayda)
- Banana Jacks & Plugs Buchla – (Newark)
- Jacks and Connectors – (Synthrotek)
- Various Jacks and Plugs – (Synthcube)
- Various Jacks and Plugs – (Modular Addict)
- THONKICONN Jacks and Others – UK – (THONK)
Switches
Inductors
Knobs
- Various Knobs – (Synthcube)
- Various Knobs – (Modular Addict)
- 6.35mm Knurled Aluminum – (Tayda)
Headers
- General Pin – (Tayda)
- General – (Mouser)
- Pin Headers and Sockets – (Synthcube)
- Common Pins and Headers – (Synthrotek)
- Pins and Headers – (THONK)
- 10 and 16 Pin Shrouded Headers – (Modular Addict)

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