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Interface A (LEGO Interface Box & Transformer)

Interface A (LEGO Interface Box & Transformer)

9750-1·LEGO·1986·4 parts

Used Avg
$95.26
New Avg
$95.26
Showing used price
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About Interface A (LEGO Interface Box & Transformer)

Interface A (LEGO Interface Box & Transformer) (9750-1) is a LEGO LEGO set from 1986 valued at $95.26 on BrickLink. It contains 4 cataloged parts. This set has been retired and is only available on the secondary market.

Seller notes

  • This is a vintage set (1986). Condition of the box and instructions significantly affects value. A complete set with original box and instructions can sell for well above the average.

Parts (4)

Technic Control 4.5V Interface Box with Ports (1986 Version)
Technic Control 4.5V Interface Box with Ports (1986 Version)
Black
Electric, Cable Technic Control 4.5V Interface
Electric, Cable Technic Control 4.5V Interface
Light Gray
Set 9750 Directions for Use (120616)
Set 9750 Directions for Use (120616)
(Not Applicable)
Electric Power Adapter / Transformer, 7V AC - 1.6 amp
Electric Power Adapter / Transformer, 7V AC - 1.6 amp
Black

Common questions about Interface A (LEGO Interface Box & Transformer)

How much is LEGO Interface A (LEGO Interface Box & Transformer) (9750-1) worth?

Interface A (LEGO Interface Box & Transformer) sells for an average of $95.26 used on BrickLink based on 6 months of completed sales. As a retired set, prices tend to hold steady or appreciate over time, especially for complete sets with original packaging. Actual prices vary with completeness — missing minifigures or key parts will lower the value.

Is LEGO Interface A (LEGO Interface Box & Transformer) (9750-1) retired?

Yes, Interface A (LEGO Interface Box & Transformer) was released in 1986 and has been retired from retail for several years. Retired LEGO sets are only available on the secondary market through BrickLink, eBay, or other resale platforms.

How do I check if my Interface A (LEGO Interface Box & Transformer) set is complete?

Use the parts list on this page to check every piece. For the minifigures specifically, you can use the brick'em scanner to identify each figure from a photo and confirm it matches what should be in this set. Missing pieces can be individually sourced on BrickLink.

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