LEGO 742 Trains 12v Transformer

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Set Details

Set number

742-1

Name

12v Transformer

Theme

Trains

Subtheme

12V

Year

1970

Availability

Retired

Pieces

1 (PPP $9.99)

Set PricingExtremely Rare

Retail price

$9.99

Value

Unknown

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*Listings are for new/sealed sets.

Set Facts

It includes a single part, Blue Electric, Train 12V Transformer for 110V - Type 1.

12v Transformer Reviews

29 reviews

4.3

Collectors

Investors

BrickTrains-Sets

“The Lego 742 12v Transformer for 100 volt mains is basically a universal remote for all the things going on in your train track. There are ports in the transformer that controls the train, of course, one for the switch tracks, and one for the signals. It is great because all... More these devices to control the switch track snaps onto place on the transformer, so you can have a neater train station.”

Full review at bricktrains-sets.com

Subtheme Analysis

Trains / 12V

Sets

Years

1969 - 1970

Annual growth

+4.98%

Community Stats

12v Transformer currently ranks #7 out of the top most owned sets in Trains 12V.

#18 Curved 12V Conducting Rails

#2Diesel Locomotive

#38 Straight 12V Conducting Rails

#4Steam Locomotive

#512V Transformer for 220V Pack

#712v Transformer

#82m Extension Cord for Points

#9Automatic Right Electric Switch

About Trains 12V

In 1969 LEGO released the 12 volt train sets as part of the Blue Era which was named because of the rail color. These 12V train sets used additional conductor rails mounted between the standard 4.5V rails and 12V motors contained in the same housings as the 4.5V motors, but with additional metal contacts attached to the bottom of the housings.

12V consists of 17 sets that ran from 1969 to 1970. As of today, 722-2 12V Electric Train with 2 Wagons is the most valuable 12V set with an estimated new/factory sealed value of $1,054.


	720-2 Train with 12V Electric Motor Theme / Subtheme Trains / 12V Year 1969 Pieces 369 Availability Retired Buy this set at Bricklink	Retail $24.50 Value $765.89 Growth 3026.1% Annual growth 6.7% I own this set I want this set

	722-2 12V Electric Train with 2 Wagons Theme / Subtheme Trains / 12V Year 1970 Pieces 151 Availability Retired Buy this set at Bricklink	Retail $15.25 Value $1,054.43 Growth 6814.3% Annual growth 4.5% I own this set I want this set

	721 Steam Locomotive Theme / Subtheme Trains / 12V Year 1969 Pieces 126 Availability Retired Buy this set at Bricklink	Retail $11.50 Value $481.19 Growth 4084.3% Annual growth 7.3% I own this set I want this set

	723 Diesel Locomotive Theme / Subtheme Trains / 12V Year 1970 Pieces 95 Availability Retired Buy this set at eBay Bricklink	Retail $8.50 Value $549.28 Growth 6362.1% Annual growth 8.4% I own this set I want this set

	702 12V Motor with Accessories Pack Theme / Subtheme Trains / 12V Year 1969 Pieces 28 Availability Retired Buy this set at eBay Bricklink	Retail $7.25 Value $359.99 Growth 4865.4% Annual growth 7.7% I own this set I want this set

	750 8 Straight 12V Conducting Rails Theme / Subtheme Trains / 12V Year 1969 Pieces 8 Availability Retired Buy this set at Bricklink	Retail $1.49 Value $16.35 Growth 997.3% Annual growth 3.6% I own this set I want this set

	751 8 Curved 12V Conducting Rails Theme / Subtheme Trains / 12V Year 1969 Pieces 8 Availability Retired Buy this set at Bricklink	Retail $1.49 Value $8.20 Growth 450.3% Annual growth 4.1% I own this set I want this set

	753 Automatic Right Electric Switch Theme / Subtheme Trains / 12V Year 1969 Pieces 5 Availability Retired Buy this set at Bricklink	Retail $4.75 Value $159.73 Growth 3262.7% Annual growth 6.9% I own this set I want this set

	754 Automatic Left Electric Switch Theme / Subtheme Trains / 12V Year 1969 Pieces 5 Availability Retired Buy this set at Bricklink	Retail $4.75 Value $171.85 Growth 3517.9% Annual growth 7.0% I own this set I want this set

	705 Motor Bushings Theme / Subtheme Trains / 12V Year 1969 Pieces 4 Availability Retired Buy this set at eBay Bricklink	Retail $0.50 Value $6.51 Growth 1202.0% Annual growth 3.6% I own this set I want this set

	704 12V Sleeper Track Contacts Theme / Subtheme Trains / 12V Year 1969 Pieces 2 Availability Retired Buy this set at Bricklink	Retail $0.75 Value $53.52 Growth 7036.0% Annual growth 7.8% I own this set I want this set

	703 12V Replacement Motor Theme / Subtheme Trains / 12V Year 1969 Pieces 1 Availability Retired Buy this set at eBay Bricklink	Retail $2.25 Value $32.62 Growth 1349.8% Annual growth 5.2% I own this set I want this set

	706 Rail Contact Wires Theme / Subtheme Trains / 12V Year 1969 Pieces 1 Availability Retired Buy this set at Bricklink	Retail $0.75 Value $20.34 Growth 2612.0% Annual growth 5.9% I own this set I want this set

	708 2m Extension Cord for Points Theme / Subtheme Trains / 12V Year 1970 Pieces 1 Availability Retired Buy this set at Bricklink	Retail $1.00 Value $14.15 Growth 1315.0% Annual growth 5.2% I own this set I want this set

	740-2 12V Transformer for 220V Pack Theme / Subtheme Trains / 12V Year 1969 Pieces 1 Availability Retired Buy this set at Bricklink	Retail $12.50 Value $63.21 Growth 405.7% Annual growth 3.1% I own this set I want this set

	707-2 12V Train Replacement Parts Retailer Pack Theme / Subtheme Trains / 12V Year 1969 Availability Retired Buy this set at Bricklink	I own this set I want this set

742 LEGO Trains 12v Transformer

Sets in Trains / 12V

720-2 Train with 12V Electric Motor

722-2 12V Electric Train with 2 Wagons

721 Steam Locomotive

723 Diesel Locomotive

702 12V Motor with Accessories Pack

750 8 Straight 12V Conducting Rails

751 8 Curved 12V Conducting Rails

753 Automatic Right Electric Switch

754 Automatic Left Electric Switch

705 Motor Bushings

704 12V Sleeper Track Contacts

703 12V Replacement Motor

706 Rail Contact Wires

708 2m Extension Cord for Points

740-2 12V Transformer for 220V Pack

707-2 12V Train Replacement Parts Retailer Pack