DIY Guide: How to Make a Cigar Tube Circuit Tester

DIY Guide: How to Make a Cigar Tube Circuit Tester Turn a simple cigar tube into a handy circuit tester with this step-by-step DIY guide! Learn how to assemble a compact, portable tester for checking electrical circuits, using basic components like LEDs, resistors, and a battery. Perfect for hobbyists and electronics enthusiasts, this project is a fun and practical way to repurpose a cigar tube into a useful tool.