# STEM electronics experiment kit, model 3688, 91 pieces

> STEM electronics experiment kit, model 3688, with 91 numbered and color-coded pieces, snap-fastener connections on a grid, no soldering or tools required. Allows building over 511 functional projects such as an AM/FM radio, fan, generator or voice recorder. Requires AA batteries, not included. Recommended age: 8+ years.

- Page: https://sigmanortec.ro/en/stem-electronics-experiment-kit-model-3688-91-pieces
- Price: 379.11 RON
- Availability: Out of stock
- Reference: R-9814 · EAN: 5943149341298
- Category: Mechatronics and IoT > The Kit > Educational Kits
- Specifications: Model: 3688
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 04:49 (Europe/Bucharest)

## Description

STEM kit for electronics experiments, ideal for introducing children to electrical engineering through practical and safe construction. Includes 91 numbered and color-coded parts, with grid-attachment, without soldering or tools, allows the creation of over 511 functional projects such as AM/FM radio, fan, generator or voice recorder. Requires AA batteries (not included).
The Model 3688 STEM Electronics Experiment Kit is a fun and safe way to get started in electrical engineering. With a set of 91 colorful, easy-to-use pieces with snap-together connectors, this kit lets kids build electronic gadgets and explore basic electrical circuit concepts through fun, interactive experiments.
With the kit, you can build over 511 electronic projects, including an AM/FM radio, electric fan, AC generator, digital voice recorder, and more.
The pieces are numbered and color-coded, making them easy to identify and assemble thanks to the snap-together system. They simply snap onto a plastic grid, without the need for glue or tools.
The kit allows learning about how electronic circuits work through hands-on projects, including building functional electronic devices, such as circuit boards in televisions, radios, and other electronic equipment.
With this kit, you can build, for example, adjustable AM and FM radios, digital voice recorders, fans and power generators, plus much more.
Specifications:
Number of pieces: 91 numbered and color-coded pieces
Projects: Over 511 electronic projects
Batteries Required: Yes, AA (batteries not included)
Recommended age: 8+ years
The project tutorial can be found at the following link: https://1drv.ms/f/s!AsjXMFmRq9yFitN-v1tN9bv2Jbum3Q?e=echbGt