DIY Voltage Regulator Kit

Build a real adjustable voltage regulator, from breadboard to PCB.
Stop just watching electronics videos. Build the circuit yourself with this hands-on kit takes you through the same process engineers use: first building a working prototype on a breadboard, then soldering the final version onto a custom PCB.

You’ll learn how an adjustable voltage regulator works, how the output voltage is controlled, and how real electronic circuits move from messy prototype to finished board.

Free shipping is currently available and automatically applied at checkout.

Why this kit is different
This is not a “plug in a module and you’re done” kit. You build the actual circuit yourself.

First, you assemble it on a breadboard so you can see every connection and understand what each part is doing. Then, once it works, you build the same circuit again on a proper PCB and solder it into a finished project you can keep, use, and experiment with.

That means you don’t just finish with a circuit. You finish with a better understanding of how electronics actually work.
The kit include a schematic which is explained along with a breakdown of how it converted into traces on the PCB.

What you’ll build
Inside the kit, you get the parts to build two versions of the same adjustable voltage regulator circuit.

1. Breadboard prototype

Build the circuit step by step, test it, and understand how the parts connect together.

2. Finished PCB version

Solder the circuit onto a custom printed circuit board for a cleaner, stronger, professional-looking final build.

Prototype first. PCB second. Just like real engineering.

What you’ll learn
By building this kit, you’ll learn:

Build a working voltage regulator circuit
Adjust output voltage using a potentiometer
Use resistors, capacitors, diodes, LEDs, and a heatsink in a real circuit
Test the circuit with a multimeter
Move from breadboard prototype to finished PCB
Solder a through-hole circuit board

No mystery modules. No black boxes. You build it yourself and learn what each part does.

What’s included
The kit includes two sets of all the components needed to build both the breadboard and PCB versions of the circuit.

Included in the box:

• Breadboard

• Custom PCB

• Voltage regulator

• Potentiometers

• Terminal blocks

• LEDs

• Resistors

• Electrolytic capacitors

• Ceramic capacitors

• Diodes

• Jumper wires

• Heatsink + Insulating sheets, washers, and screws

• Sandpaper

• Step-by-step illustrated assembly guide + video tutorial

Component colours and appearance may vary slightly depending on the batch.

Step-by-step instructions included
You don’t have to figure it out alone.
The kit includes a paper-based illustrated assembly guide, plus full step-by-step video instructions showing you how to build, test, and solder the circuit.

See the kit in action here:
https://youtu.be/9pvNuptmzyQ

Perfect for
Skill level: Beginner-friendly
Electronics beginners
Students
Makers
STEM learners
Engineering Mindset viewers
Anyone who wants to build real circuits instead of just plugging modules together

Recommended age: 14+

Tools required
Tools and power source are not included. You will need:

Soldering iron
Solder
Wire cutters
Pliers
Screwdriver
Safety glasses
Multimeter
Suitable low-voltage DC power source e.g. 9V battery + clip

Important information

Soldering is required for the PCB build.
Educational use only. This is not a toy.
Contains small parts. Adult supervision required.
Use only with a suitable low-voltage DC supply. Do not connect directly to mains voltage.

The regulator and heatsink may become hot during use.

FREE Shipping
You’ll receive a tracking link by email once your order is packed and ready for dispatch.
First order estimate dispatch 5th May 2026

Shipping is currently available to:
United Kingdom
United States
Canada

All kits are hand assembled by the Engineering Mindset team. Buying this kit helps you learn practical electronics skills and also supports us in creating more Engineering Mindset educational content.