# Joule Thief Cat Kit

A beautiful take on a classic circuit~

- **Seller:** [tilde.industries](https://www.lectronz.com/stores/store-url-slug), Kidlington, UK
- **Price:** €17.50 (EUR, before shipping and taxes)
- **Availability:** In stock
- **Categories:** LEDs, Lights
- **Product page:** https://www.lectronz.com/products/joule-thief-cat-kit

## Options

**Fancy a hat for your Joule Thief Cat?**

- Joule Thief Cat
- Joule Thief Cat + Witch Hat [Add €5.00]
- just the Witch Hat [Subtract €12.50]
- Joule Thief Cat + Santa Hat [Add €5.00]
- just the Santa Hat [Subtract €12.50]
- Joule Thief Cat + Straw Hat [Add €5.00]
- just the Straw Hat [Subtract €12.50]

## Links

- [Documentation](https://tilde.industries/joulethiefcat/)

## Images

![Joule Thief Cat Kit](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NTcyLCJwdXIiOiJibG9iX2lkIn19--e473d4b16af8ab1f86ec49e1866f787baf33de95/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2021-01-03T22-55-38.956Z-PXL_20200916_231000758_EDIT.jpg)
![Joule Thief Cat Kit](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NTczLCJwdXIiOiJibG9iX2lkIn19--9bd91c50236dc3d4ea713f28ea2adc5d6ee887d1/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2020-12-23T18-21-53.655Z-PXL_20201222_160744245_edit%20(2).jpg)
![Joule Thief Cat Kit](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NTc0LCJwdXIiOiJibG9iX2lkIn19--987e32ca30da51ca6dc0d19ca835336738461ab7/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2020-12-23T18-21-53.655Z-PXL_20201222_163144801_edit%20(2).jpg)
![Joule Thief Cat Kit](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NTc1LCJwdXIiOiJibG9iX2lkIn19--f584564c8635436e20e0854b762cee44572193c8/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2020-12-24T15-00-51.706Z-PXL_20201223_215913157_edit.jpg)
![Joule Thief Cat Kit](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NTc2LCJwdXIiOiJibG9iX2lkIn19--d07486a161358a801d096ca1bf901fd8b5aa4f76/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2021-10-07T22-52-25.163Z-PXL_20211007_204326926_Edit.jpg)
![Joule Thief Cat Kit](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NTc3LCJwdXIiOiJibG9iX2lkIn19--b18454c38a1b68e7f8213c8b5d6765cf6e6d5941/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2021-10-07T22-52-25.163Z-PXL_20211007_200042413_edit.jpg)
![Joule Thief Cat Kit](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NTc4LCJwdXIiOiJibG9iX2lkIn19--039641287f6f1360be8c425ec567a900714b3bc2/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2021-10-07T22-52-25.163Z-PXL_20211007_193747944_edit.jpg)
![Joule Thief Cat Kit](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NTc5LCJwdXIiOiJibG9iX2lkIn19--7f8cc15e0ccd0fbd7a49b46940c5be22fd097b7e/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2021-01-03T23-00-49.031Z-JT-Kit-Instructions-BETA.jpg)
![Joule Thief Cat Kit](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NTgwLCJwdXIiOiJibG9iX2lkIn19--e62def49c5c9b5a4298854568416447c28eee703/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGVnIiwicmVzaXplX3RvX2xpbWl0IjpbOTYwLDY0MF0sInNhdmVyIjp7InN0cmlwIjp0cnVlfX0sInB1ciI6InZhcmlhdGlvbiJ9fQ==--4e27bac8cdfb621fb828f6a3a5982fe1a423b516/2021-01-03T23-05-20.629Z-EiEsluwXYAAHR6-..jpeg)
![Joule Thief Cat Kit](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NTgxLCJwdXIiOiJibG9iX2lkIn19--ff83089a3a495e22e47fce65814091e4cd46749a/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2021-03-28T16-59-48.946Z-PXL_20210328_150809601.jpg)
![Joule Thief Cat Kit](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NTgyLCJwdXIiOiJibG9iX2lkIn19--4279917de57112f27757b0e8d075797570ec0393/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2021-03-28T16-59-48.946Z-PXL_20210328_150702851.jpg)
![Joule Thief Cat Kit](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NTgzLCJwdXIiOiJibG9iX2lkIn19--bcdab376ad3df29c7c4f6a517a452beca1b04a5a/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2020-12-24T15-00-51.706Z-PXL_20201224_135911218_edit.jpg)

## Description

## **Joule Thief Cat**

An adorable but mischievous cat who feeds on electricity, using every bit of energy left in discharged batteries. 
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### **An energy harvesting friend**

Insert your discharged AA battery (or AAA using the optional adapter) from your remote controller, multimeter, or other appliances, to give it a second life and light up the eyes of the Cat! But first you must help him get his parts back in place!

The Joule Thief Cat is a beginner-friendly soldering kit. All the parts are through-hole, and are included.

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### **Find assembly instructions [here](https://tilde.industries/joulethiefcat/)**

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### **In the Package:**
- 2x Yellow LEDs
- 1x Transistor
- 1x Capacitor
- 1x Resistor
- 1x Diode
- 2x Wires
- 1x Ferrite
- 1x Battery holder
- Joule Thief Cat PCB
 
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### **Not included:**
- AA Battery (due to shipping regulations)

## Shipping policy

We are shipping all our products through royal mail economy, in general it is about 1 to 2 weeks for EU orders, and 3 to 6 weeks for US orders - however we are seeing a lot of additional delays in the last few months, we apologies for the inconvenience.