PassioneCommodore.it
Building a Paddle for Arkanoid, for the Commodore 64 - Valiant EN
Build your own Commodore 64 arcade stick - a guide - Retro Games Collector
Interface - C64-Wiki
Syntiac pages - Joysticks
Tezza's Classic Computers Articles and Projects - Blowing up and then fixing a Commodore 64
digital joystick adapter for the PC
GitHub - matsstaff/CDTV_PS2Mouse_Joy: Arduino PS/2 mouse and joystick adapter for Commodore CDTV
Commodore 64 User Port Project Development PCB - Share Project - PCBWay
Homemade joystick – Commodore 64
Retro Isle - C64/128 Technical Section
C-64 Workshop / Pin Connections
Joystick interface for C-16, C-116 and Plus/4 - V1.1
Connectors Commodore 64 – My old computer
Connectors Commodore 64 – My old computer
New Commodore 64 C64 Joystick Joy Switcher Circuit Plus PS/2 Mouse Adapter 733 | eBay
DSUB-9M Joystick Port C64 | 3D CAD Model Library | GrabCAD
2x) Internal Joystick port, connector built-in socket for Commodore 64/128 | eBay
COMMODORE 64 128 User Port 4 player Joystick interface | eBay
Making a Joystick for C64 or Atari | Kosciusko Media
9pin Joystick Controller Cable for Atari 2600 Commodore C64 Vic-20 Ami – RetroArcadeCrafts
Control Port - C64-Wiki
File:Joystick Eingänge C64.jpg - Wikipedia
commodore 64 - Would a multi button controller have been possible on the C64? - Retrocomputing Stack Exchange
Connectors Commodore 64 – My old computer
File:Commodore 64 - Joystickports, EinAus-Schalter, Poweranschluss.jpg - Wikipedia
