![LEGO 9747 Robotics Invention System, Version 1.5 Set Parts Inventory and Instructions - LEGO Reference Guide LEGO 9747 Robotics Invention System, Version 1.5 Set Parts Inventory and Instructions - LEGO Reference Guide](https://www.toysperiod.com/img/cache/65/0x0/d4e4o5g414f4w5w5n4z5m44426a4k4l4y5v2d4139423u234y2v2z3j4l4f4s2u204q2.jpg)
LEGO 9747 Robotics Invention System, Version 1.5 Set Parts Inventory and Instructions - LEGO Reference Guide
![LEGO Set 9747-1 Robotics Invention System, Version 1.5 (1999 Mindstorms > RCX) | Rebrickable - Build with LEGO LEGO Set 9747-1 Robotics Invention System, Version 1.5 (1999 Mindstorms > RCX) | Rebrickable - Build with LEGO](https://cdn.rebrickable.com/media/thumbs/sets/9747-1/11360.jpg/1000x800p.jpg)
LEGO Set 9747-1 Robotics Invention System, Version 1.5 (1999 Mindstorms > RCX) | Rebrickable - Build with LEGO
![Mindstorms RCX 1.0 without Power Jack (from Mindstorms 1.5 sets) - Complete Brick : Part 884b | BrickLink Mindstorms RCX 1.0 without Power Jack (from Mindstorms 1.5 sets) - Complete Brick : Part 884b | BrickLink](https://img.bricklink.com/ItemImage/PL/884b.png)
Mindstorms RCX 1.0 without Power Jack (from Mindstorms 1.5 sets) - Complete Brick : Part 884b | BrickLink
![LEGO 9747 Robotics Invention System, Version 1.5 Set Parts Inventory and Instructions - LEGO Reference Guide LEGO 9747 Robotics Invention System, Version 1.5 Set Parts Inventory and Instructions - LEGO Reference Guide](https://www.toysperiod.com/img/cache/3a/0x0/d4e4o5g414f4w5w5n4z5m44426a4k4l4y5v2d4139423u234x2w2z3j4l4f4s2u204q2.jpg)
LEGO 9747 Robotics Invention System, Version 1.5 Set Parts Inventory and Instructions - LEGO Reference Guide
![LEGO part 884b - Yellow Mindstorms RCX 1.0 without Power Jack (from Mindstorms 1.5 sets) - Complete Brick at BrickScout LEGO part 884b - Yellow Mindstorms RCX 1.0 without Power Jack (from Mindstorms 1.5 sets) - Complete Brick at BrickScout](https://img.brickscout.com/88/0d/0a/0b/cb/c9/44/10/b6/b8/04/e0/5d/de/2e/8d/750x750.png)