Electronics

Tutorial using a Tripp-lite IS1000 isolation transformer.

1. What I bought for my tech bench.
2. Some models and prices of isolation transformers.
3. How to alter a public version into a tech version.
4. Helpful tips on using your oscilloscope safely with and without an isolation transformer.
5. How to be a little safer when working with high voltage live mains

These would be good tech isolation transformers that don’t need to be modified:
4.30A isolation transformer, 115/115VAC, 500VA
4.00A benchtop isolation transformer, 115/115VAC, 450VA
2.50A isolation transformer, 120VAC/120VAC, 300VA
1.25A isolation transformer, BK Precision BK1604A
0.43A isolation transformer, 115VAC, 50VA

A video on how to tune your own piano using an oscilloscope. I think it’s an interesting use of an oscilloscope!

This is a video post on how to take your laptop apart and fix a broken power jack. It also includes some useful DIY repair tips and tricks. This is a very common failure with laptops because users trip over the cords. You could score a nice laptop off EBay for under $50 with nothing more wrong with it than a power jack. This video will show you one simple way to fix such a problem.