How many pieces are in the Leads (4.5V) Spirals?

Leads (4.5V) Spirals contains 42 pieces.

What age is the Leads (4.5V) Spirals recommended for?

This set is recommended for ages 18+.

When was the Leads (4.5V) Spirals released?

Leads (4.5V) Spirals was released in 1987.

🏛 Service Packs

Set #1347

Leads (4.5V) Spirals

Name: Leads (4.5V) Spirals
Brand: LEGO
SKU: 1347-1

Leads (4.

🏆 Best For: Ideal for vintage LEGO collectors and hobbyists interested in basic electrical circuits. ⏱ 1.0 hr build 🧩 42 pcs

★★★☆☆ 3.8

A niche set catering to LEGO collectors interested in vintage electrical systems. While not a traditional 'build', it's praised for its utility in restoring and powering classic LEGO models, though its appeal is limited to a specific audience.

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📝 Our Take

Leads (4.5V) Spirals is a fascinating glimpse into early LEGO electrical components. This service pack provides essential parts for powering and connecting LEGO models from the 4.5V era, allowing builders to add movement and light to their creations.

This set is perfect for LEGO enthusiasts interested in vintage electrical systems and restoring classic models. It offers a hands-on experience with basic circuitry and provides the necessary components to bring older LEGO creations back to life.

Skip this if you're primarily interested in modern LEGO sets or don't have a need for 4.5V electrical components. Consider exploring newer LEGO Technic sets with Power Functions or Powered Up systems for more advanced building and automation.

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🧱 Building Experience

🧩

Pieces

⏱

1.0h

Build Time

📊

Beginner

Difficulty

Build Highlights:

Simple connections for powering LEGO models
Introduction to 4.5V electrical systems
Restoration of classic LEGO sets
Experimentation with basic circuits

📈 Investment Analysis

→ Price stable

C+

Investment Grade

⏳ Active

The Leads (4.5V) Spirals set, while not a traditional 'set' with a specific model to build, holds niche investment potential due to its rarity and the increasing interest in vintage LEGO electrical components. As older LEGO sets that used the 4.5V system become more scarce, the demand for replacement or supplementary electrical parts like those included in this service pack may rise. However, its value is highly dependent on the condition of the wires and connectors. The set's low piece count and specialized nature limit its broad appeal, making it a more speculative investment.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

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This set is unique as a service pack, providing essential electrical components rather than a complete model. Similar sets would include other LEGO electrical components from the 4.5V or 12V era. Modern LEGO Power Functions or Powered Up sets offer more advanced functionality, but lack the vintage charm and simplicity of the 4.5V system. Collectors focused on restoring classic LEGO models may prefer this set over newer alternatives.

📦 Full Parts Inventory - 5 unique parts • 42 total pieces

Electric Connecto...

Part #: 2757 2× Light Gray

Tile 1 x 2 with G...

Part #: 3069b 2× Yellow

Tile 1 x 2 with G...

Part #: 3069b 2× Red

Tile 1 x 2 with G...

Part #: 3069b 2× Black

Tile 1 x 2 with G...

Part #: 3069b 2× Light Gray

Tile 1 x 2 with G...

Part #: 3069b 2× Green

Technic Cable Holder

Part #: 70376 12× Black

Wire 12V / 4.5V w...

Part #: 74503 6× Light Gray

Electric Connecto...

Part #: 766c01 12× Light Gray

This set is a valuable source of vintage LEGO electrical connectors and wires, essential for restoring or modifying classic LEGO models from the 4.5V era. The light gray connectors and wires are particularly useful for maintaining the original aesthetic of older sets.