Joule Thief Cat
An adorable but mischievous cat who feeds on electricity, using every bit of energy left in discharged batteries.
![](https://tilde.industries/content/images/2020/12/PXL_20201222_160744245_edit--2-.jpg)
An energy harvesting friend
Insert your discharged AA battery 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.
Find the assembly instructions below!
![I sell on Tindie](https://d2ss6ovg47m0r5.cloudfront.net/badges/tindie-larges.png)
![](https://tilde.industries/content/images/2020/12/PXL_20200916_231000758_EDIT.jpg)
![](https://tilde.industries/content/images/2020/12/PXL_20201222_163144801_edit--2-.jpg)
![](https://tilde.industries/content/images/2020/12/PXL_20201223_215913157_edit.jpg)
![](https://tilde.industries/content/images/2020/12/PXL_20201224_135911218_edit.jpg)
![](https://tilde.industries/content/images/2021/01/EiEsluwXYAAHR6-.jpeg)
Instructions:
↓日本語の説明は下にあります↓
![](https://tilde.industries/content/images/2021/01/Comic_001.jpg)
![](https://tilde.industries/content/images/2021/01/JT-Kit-Instructions-BETA.jpg)
![](https://tilde.industries/content/images/2022/08/JTKJPCover.png)
![](https://tilde.industries/content/images/2022/08/JTKJP.png)
Parts list:
QTY | Part | Reference (all parts are through-hole) |
---|---|---|
2 | Yellow LEDs | Flat |
1 | Transistor | NPN |
1 | Capacitor | 10nF |
1 | Resistor | 360 ohms |
1 | Ferrite | |
2 | Wires | solid core ~ 24AWG 20cm |
1 | Battery holder | single AA battery holder |