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6750 LEGO Sonic Robot thumbnail image

6750 LEGO Sonic Robot
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6750 LEGO Sonic Robot
  • Sonic Robot thumbnail
  • Sonic Robot thumbnail
  • Sonic Robot thumbnail
  • Sonic Robot thumbnail
  • Sonic Robot thumbnail
  • Sonic Robot thumbnail

LEGO 6750 Sonic Robot is a vintage Space set from 1986 valued at $657 for new and sealed sets, up 6477% from an original retail price of $9.99. Annual appreciation has averaged 6.37% since release. Used copies are valued between $52 and $73 depending on condition.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Sonic Robot since November 2016. Very high accuracy
LEGO 6750 Sonic Robot is a Space/Classic Space set released in 1986, containing 103 pieces and 2 minifigures. The set builds a large robot with dual rocket seats and incorporates a 9V battery box with Light & Sound bricks in the Classic Space style. Its electronic elements enable light and sound effects integrated into the robot. Released near the end of the original Classic Space era, it coincided with the introduction of Futuron.

A new and sealed Sonic Robot is currently valued at around $657, with annual growth of approximately 4%, which is lower than other Classic sets. The average used price is $61 for those in good overall condition. New and sealed listings currently range from $588 to $684. Based on current trends, this set could be valued near $696 within the next year.
All regions

For Sale (New/Sealed)

 (NL) MISB FROM FIRST OWNER $578.35
-12.0%
(DE) New set with nice box. Box was opened at one side (to check) and seal was fixed with ... $636.18
-3.2%
(JP) 6750 Space Sonic Robot 1986 Classic Space Light & Sound Vintage Set $693.68
+5.6%
All regions

For Sale (Used)

 (DE) Used - 6750 Sonic Robot Classic Space Vintage Instructions Space
$51.09
--15.8%
(HU) Used - Comes with one trans-yellow bulb cover (no red or green). Light and sound syst... $55.37
(DE) Used - In good condition. Electrical components testet and works perfect. Without box... $68.24
(UK) Used - Complete in good condition with instructions but no box. Some discolouration b... $75.00

Sets in Space / Classic

6985 Cosmic Fleet Voyager

Theme / Subtheme Space / Classic
Year 1986
Pieces / Minifigs 413 / 4
Availability Retired
6985 LEGO Cosmic Fleet Voyager
Retail $59.99
Value $2,545.65
Growth  +4143.5%
Annual growth 4.5%

6940 Alien Moon Stalker

Theme / Subtheme Space / Classic
Year 1986
Pieces / Minifigs 263 / 2
Availability Retired
6940 LEGO Alien Moon Stalker
Retail $24.99
Value $793.32
Growth  +3074.5%
Annual growth 6.6%

6780 XT Starship

Theme / Subtheme Space / Classic
Year 1986
Pieces / Minifigs 201 / 1
Availability Retired
6780 LEGO XT Starship
Retail $29.99
Value $681.03
Growth  +2170.9%
Annual growth 4.5%

6892 Modular Space Transport

Theme / Subtheme Space / Classic
Year 1986
Pieces / Minifigs 150 / 2
Availability Retired
6892 LEGO Modular Space Transport
Retail $14.99
Value $373.93
Growth  +2394.5%
Annual growth 7.2%

6926 Mobile Recovery Vehicle

Theme / Subtheme Space / Classic
Year 1986
Pieces / Minifigs 150 / 2
Availability Retired
6926 LEGO Mobile Recovery Vehicle
Retail $14.99
Value $430.48
Growth  +2771.8%
Annual growth 5.2%

1580 Lunar Scout

Theme / Subtheme Space / Classic
Year 1986
Pieces / Minifigs 72 / 1
Availability Retired
1580 LEGO Lunar Scout
Retail $7.99
Value $587.70
Growth  +7255.4%
Annual growth 8.3%

1558 Mobile Command Trailer

Theme / Subtheme Space / Classic
Year 1986
Pieces / Minifigs 70 / 2
Availability Retired
1558 LEGO Mobile Command Trailer
Retail $7.99
Value $343.89
Growth  +4204.0%
Annual growth 9.9%

6874 Moon Rover

Theme / Subtheme Space / Classic
Year 1986
Pieces / Minifigs 66 / 2
Availability Retired
6874 LEGO Moon Rover
Retail $7.49
Value $231.74
Growth  +2994.0%
Annual growth 5.0%

6702 Minifig Pack

Theme / Subtheme Space / Classic
Year 1986
Pieces / Minifigs 56 / 6
Availability Retired
6702 LEGO Minifig Pack
Retail $4.99
Value $404.36
Growth  +8003.4%
Annual growth 5.4%

6845 Cosmic Charger

Theme / Subtheme Space / Classic
Year 1986
Pieces / Minifigs 51 / 1
Availability Retired
6845 LEGO Cosmic Charger
Retail $3.99
Value $233.14
Growth  +5743.1%
Annual growth 6.0%

6820 Starfire I

Theme / Subtheme Space / Classic
Year 1986
Pieces / Minifigs 34 / 1
Availability Retired
6820 LEGO Starfire I
Retail $2.99
Value $118.66
Growth  +3868.6%
Annual growth 5.7%

6802 Space Probe

Theme / Subtheme Space / Classic
Year 1986
Pieces / Minifigs 31 / 2
Availability Retired
6802 LEGO Space Probe
Retail $3.49
Value $241.33
Growth  +6814.9%
Annual growth 6.2%

1557 Scooter

Theme / Subtheme Space / Classic
Year 1986
Pieces / Minifigs 26 / 1
Availability Retired
1557 LEGO Scooter
Retail $2.49
Value $314.56
Growth  +12532.9%
Annual growth 12.9%

My Collection

Sonic Robot Reviews

25 reviews
4.8
Collectors
Investors
Brickset
Unique model, unusual build — “Somewhere between classic space and futuron, this robot is an odd but special set. Almost the whole torso consists of the 9V battery box that is orientated vertically, and every other element in the build has to adjust to this, resulting in very unusual SNOT techniques for... More such an early model.”
Full review at brickset.com
“Bulky robot designed around the battery box with two deployable hover chairs. Red and blue astronauts. One light and a sound brick that emits two space sounds. 9V lights & sounds! I find it curious that the robot comes with two sets of hands: grabber jaws or shovel scoops.... More The hover chairs are cute.”
Full review at mpospese.com

About Space Classic

The LEGO Classic Space was introduced in 1978 and was the first space theme. It features sets with peaceful space explorers with no enemies unlike other LEGO space sets. There were 5 astronaut minifigures the wore the same suites but in various colors including blue, red, white, yellow and black.

Classic consists of 90 sets that ran from 1978 to 2015. As of today, 926 Command Center is the most valuable Classic set with an estimated new/factory sealed value of $4,645.
Summary
Space Classic Sonic Robot set 6750 was released in October 1985, retailing for $10, but has since been retired. New, unopened Sonic Robot sets are valued at $657, while used sets can be found for $61 in good condition.
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