Theremin Siren Kit

Level 2

Now that you've learned the basics of how electricity works in Intro to Electronics, get ready to apply your newfound knowledge and build your first real circuit! This amazing little circuit is an electronic musical instrument that can be played with just a wave of your hand. You can even add a few more components to create the crazy sounding Theremin Outer Space Siren! Through this course you will explore the "magic" of photoresistors, discover how speakers produce sound, and learn how the 556 Timer (one of the most popular IC chips in the world) can be used to create an oscillator.

What's Included?


This Level 2 kit comes with all of the additional materials needed (when combined with the Intro to Electronics kit) to complete the projects in the Theremin Siren learning guide. By pairing kits together in this way, the cost of each successive kit is dramatically reduced since all of our components can be reused and re-purposed to create hundreds of different electronics projects.

Parts QTY
Photoresistor 2
Speaker 1
Diode 2
Capacitor 0.01 uF 2
Capacitor 0.1 uF 5
Capacitor 1 uF 2
556 Timer IC 2
Theremin kit materials

Digital Learning Guide

Gain invaluable practical experience while also learning the science behind how everything works! The Techsplorers learning method leverages the power of analogies to link new ideas to concepts you already know and pairs hands-on activities with written explanations to increase retention. Through detailed step-by-step guided lessons you will learn everything you need to know as you continue your journey into electronics.

The guide is provided in PDF form through the Google platform. This allows access from anywhere on any device (simply download the free Google Drive app) and ensures you will always have the most current version if any updates are added in the future. We also provide free virtual support for all of our kits. If you have any questions, contact us at and an expert will get back to you within 48 hours.

How to Buy

  1. Click the "Add to Cart" button. This will take you to a secure Paypal shopping cart where you can pay via Paypal, debit, or credit card (no Paypal account needed). Make sure to include a valid contact email during checkout.
  2. Within 48 hours of purchase a confirmation email will be sent to verify the shipping address and request the Google username of the individual who will be accessing the digital learning guide. Google Drive is required to access the guide. If you do not already have a Google account, visit to create one for free.
  3. Once your shipping address is confirmed, the materials will be shipped free right to your door!

Theremin Siren
Materials + Guide = $29
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