Gakken Denshi EX-Series

Projects and documentation on the Gakken Denshi EX- Series of electronic learning kits produced and sold in Japan from the mid 1970's to the 1990's.

This page contains information on both the oridginal EX - 150 Kit available from Gakken Denshi as well as the EX - Mini available from otono no Kagaku (adult Science Magazine) Volume 32 and the 4 bit GMC-4 micro computer from volume 24.

What is the Gakken Denshi EX Series learning kits?

A different kind of learning kit.

The Gakken Denshi EX series is a range of electronic learning kits created in japan during the 1970's.

Whats makes them different to other learning kits is that the components are placed in plastic blocks instead of being directly accessable >>>

Designing Custom Gakken Denshi Blocks

Adding you own components to expand the kits.

In this guide I will introduce you to free software Freecad in order to model a 3D printable block that we can use as a base for adding custom parts to the kits >>>

 

Otona no Kagaku EX-Mini

A miniture version of the EX-Series Electronic learning kit.

In this article I will show you the EX-Mini that was given away in volume 32 of Otona no Kagaku >>>

Gakken Denshi EX - Series

Welcome to the Gakken Denshi Block Blog.

Mar 22, 2025
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