This is a list of components and parts regularly employed in my modules, and where to get them.
This list is not exhaustive nor guaranteed to be up-to-date . If you find any error, or want to add an additional source, feel free to comment below.

Connectors

Jacks 3.5mm Mono

• Cliff S6/BB (FCR1281, CL1384): Farnell (FR), Rapid, Reichelt, Smallbear Elec, TME
• “Thonkiconn” (QingPu WQP-PJ301M-12, WQP-WQP518MA, WQP-PJ398SM…): Thonk, Synthcube

Jacks 3.5mm Stereo

Hardware

Integrated Circuits

• OTA 13700: Reichelt, LCSC/JLC, Tayda

Potentiometers

• 9mm Right Angle (Horizontal) “Alpha”
• 9mm Vertical “Alpha” with bushing
• 9mm Vertical “Alpha” without bushing

Switches