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<h1>Robotics Invention System Upgrade Kit</h1><div class='tags floatleft'><a href='/sets/3803-1/Robotics-Invention-System-Upgrade-Kit'>3803-1</a> <a href='/sets/theme-Mindstorms'>Mindstorms</a> <a class='subtheme' href='/sets/subtheme-1-0'>1.0</a> <a class='year' href='/sets/theme-Mindstorms/year-1999'>1999</a> </div><div class='floatright'>©1999 LEGO Group</div>

Robotics Invention System Upgrade Kit

3803-1 Mindstorms 1.0 1999

©1999 LEGO Group

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3803: Robotics Invention System Upgrade Kit

3803-1 Mindstorms 1.0 1999

Pieces: 70
RRP: $25.00
PPP: 35.7c
Packaging: Box

Value new: ~$50.00
Notes: Upgrades version 1.0 to version 1.5. Contains V1.5 CD-Rom, User Guide, Constructopedia and Test Pad plus 65 extra LEGO elements.

Our community: 88 own this set, 112 want it

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<h1>RCX Programmable LEGO Brick</h1><div class='tags floatleft'><a href='/sets/9709-1/RCX-Programmable-LEGO-Brick'>9709-1</a> <a href='/sets/theme-Mindstorms'>Mindstorms</a> <a class='subtheme' href='/sets/subtheme-1-0'>1.0</a> <a class='year' href='/sets/theme-Mindstorms/year-1999'>1999</a> </div><div class='floatright'>©1999 LEGO Group</div>

RCX Programmable LEGO Brick

9709-1 Mindstorms 1.0 1999

©1999 LEGO Group

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9709: RCX Programmable LEGO Brick

9709-1 Mindstorms 1.0 1999

9V Electric Lego Technic Rcx

Pieces: 1
RRP: $110.00
PPP: 11000.0c
Packaging: Box
Additional images: 1

Value new: ~$31.78
Value used: ~$9.91

Our community: 337 own this set, 136 want it

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<h1>Robotics Discovery Set</h1><div class='tags floatleft'><a href='/sets/9735-1/Robotics-Discovery-Set'>9735-1</a> <a href='/sets/theme-Mindstorms'>Mindstorms</a> <a class='subtheme' href='/sets/subtheme-1-0'>1.0</a> <a class='year' href='/sets/theme-Mindstorms/year-1999'>1999</a> </div><div class='floatright'>©1999 LEGO Group</div>

Robotics Discovery Set

9735-1 Mindstorms 1.0 1999

©1999 LEGO Group

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9735: Robotics Discovery Set

9735-1 Mindstorms 1.0 1999

9V Electric Electric Motor Multibuild Sensor

Pieces: 390
RRP: $150.00
PPP: 38.5c
Instructions: Yes

Value new: ~$230.34
Value used: ~$80.00
Notes: Random set of the day on 27 Mar 2021

Our community: 430 own this set, 159 want it

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<h1>RCX Remote Control Unit</h1><div class='tags floatleft'><a href='/sets/9738-1/RCX-Remote-Control-Unit'>9738-1</a> <a href='/sets/theme-Mindstorms'>Mindstorms</a> <a class='subtheme' href='/sets/subtheme-1-0'>1.0</a> <a class='year' href='/sets/theme-Mindstorms/year-1999'>1999</a> </div><div class='floatright'>©1999 LEGO Group</div>

RCX Remote Control Unit

9738-1 Mindstorms 1.0 1999

©1999 LEGO Group

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9738: RCX Remote Control Unit

9738-1 Mindstorms 1.0 1999

Electric Remote Control

Pieces: 1
RRP: $19.75
PPP: 1975.0c

Value new: ~$33.66
Value used: ~$10.00

Our community: 286 own this set, 118 want it

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<h1>Robotics Invention System 1.5</h1><div class='tags floatleft'><a href='/sets/9747-1/Robotics-Invention-System-1-5'>9747-1</a> <a href='/sets/theme-Mindstorms'>Mindstorms</a> <a class='subtheme' href='/sets/subtheme-1-5'>1.5</a> <a class='year' href='/sets/theme-Mindstorms/year-1999'>1999</a> </div><div class='floatright'>©1999 LEGO Group</div>

Robotics Invention System 1.5

9747-1 Mindstorms 1.5 1999

©1999 LEGO Group

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9747: Robotics Invention System 1.5

9747-1 Mindstorms 1.5 1999

9V Cd Rom Electric Electric Motor Multibuild Playmat Rcx Sensor

Pieces: 717
RRP: $200.00
PPP: 27.9c
Instructions: Yes

Value new: ~$199.90
Value used: ~$114.35
Notes: Random set of the day on 20 Dec 2018
Version 1.5.

Our community: 1298 own this set, 130 want it

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<h1>Droid Developer Kit</h1><div class='tags floatleft'><a href='/sets/9748-1/Droid-Developer-Kit'>9748-1</a> <a href='/sets/theme-Mindstorms'>Mindstorms</a> <a class='subtheme' href='/sets/subtheme-Star-Wars'>Star Wars</a> <a class='year' href='/sets/theme-Mindstorms/year-1999'>1999</a> </div><div class='floatright'>©1999 LEGO Group</div>

Droid Developer Kit

9748-1 Mindstorms Star Wars 1999

©1999 LEGO Group

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9748: Droid Developer Kit

9748-1 Mindstorms Star Wars 1999

A New Hope Cd Rom Droids Electric Electric Motor Large Scale Droid Micro Scout Control Brick Multibuild Original Trilogy Prequel Trilogy Return Of The Jedi Sensor Star Wars The Empire Strikes Back The Phantom Menace

✭✭✭✭✩ 3.9 60 ratings 3 reviews

Pieces: 657
RRP: $100.00
PPP: 15.2c
Instructions: Yes

Value new: ~$219.84
Value used: ~$67.83

Our community: 3006 own this set, 514 want it

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<h1>Temperature Sensor</h1><div class='tags floatleft'><a href='/sets/9755-1/Temperature-Sensor'>9755-1</a> <a href='/sets/theme-Mindstorms'>Mindstorms</a> <a class='subtheme' href='/sets/subtheme-1-0'>1.0</a> <a class='year' href='/sets/theme-Mindstorms/year-1999'>1999</a> </div><div class='floatright'>©1999 LEGO Group</div>

Temperature Sensor

9755-1 Mindstorms 1.0 1999

©1999 LEGO Group

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9755: Temperature Sensor

9755-1 Mindstorms 1.0 1999

9V Electric Polybag Sensor

Pieces: 1
RRP: $24.00
PPP: 2400.0c
Packaging: Polybag

Value new: ~$13.37
Value used: ~$10.96

Our community: 136 own this set, 130 want it

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<h1>Rotation Sensor</h1><div class='tags floatleft'><a href='/sets/9756-1/Rotation-Sensor'>9756-1</a> <a href='/sets/theme-Mindstorms'>Mindstorms</a> <a class='subtheme' href='/sets/subtheme-1-0'>1.0</a> <a class='year' href='/sets/theme-Mindstorms/year-1999'>1999</a> </div><div class='floatright'>©1999 LEGO Group</div>

Rotation Sensor

9756-1 Mindstorms 1.0 1999

©1999 LEGO Group

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9756: Rotation Sensor

9756-1 Mindstorms 1.0 1999

9V Electric Sensor

Pieces: 1
RRP: $15.00
PPP: 1500.0c

Value new: ~$10.00
Value used: ~$5.82

Our community: 225 own this set, 124 want it

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<h1>Touch Sensor</h1><div class='tags floatleft'><a href='/sets/9757-1/Touch-Sensor'>9757-1</a> <a href='/sets/theme-Mindstorms'>Mindstorms</a> <a class='subtheme' href='/sets/subtheme-1-0'>1.0</a> <a class='year' href='/sets/theme-Mindstorms/year-1999'>1999</a> </div><div class='floatright'>©1999 LEGO Group</div>

Touch Sensor

9757-1 Mindstorms 1.0 1999

©1999 LEGO Group

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9757: Touch Sensor

9757-1 Mindstorms 1.0 1999

9V Electric Sensor

Pieces: 2
RRP: $11.00
PPP: 550.0c

Value new: ~$8.00
Value used: ~$6.99

Our community: 180 own this set, 116 want it

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<h1>Light Sensor</h1><div class='tags floatleft'><a href='/sets/9758-1/Light-Sensor'>9758-1</a> <a href='/sets/theme-Mindstorms'>Mindstorms</a> <a class='subtheme' href='/sets/subtheme-1-0'>1.0</a> <a class='year' href='/sets/theme-Mindstorms/year-1999'>1999</a> </div><div class='floatright'>©1999 LEGO Group</div>

Light Sensor

9758-1 Mindstorms 1.0 1999

©1999 LEGO Group

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9758: Light Sensor

9758-1 Mindstorms 1.0 1999

9V Electric Sensor

Pieces: 1
RRP: $19.75
PPP: 1975.0c

Value new: ~$2.80
Value used: ~$5.83
Notes: Available from Shop At Home 05/2004.

Our community: 211 own this set, 117 want it

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