Topic

high current

4 videos. Ranked by independent recommendations, not by views.

1. 

   1 EEVblog #317 - PCB Tinning Myth Busting

   EEVblog 18 people · 17 months · since Jul 2014

   Dave Jones measures how much solder over exposed traces lowers resistance, finding roughly a 50 percent cut on 1 oz copper; cited for high current PCB traces.

2. 

   2 How To Make An Electrical Arc Furnace

   TKOR 5 people · 5 months · since Mar 2015

   Linked as an example of a home-built arc furnace running from a microwave oven transformer; viewers note it is fiddly and raises real safety questions.

3. 

   3 Ball Bearing Motor - How to Make/How it Works

   RimstarOrg 3 people · 3 months · since Jan 2015

   A demonstration of the curious ball bearing motor, which spins for no obvious reason, linked as an odd project along with a theory of why it turns.

4. 

   4 Making an ARC Welder - Part 1 of 2

   TKOR 4 people · 3 months · since Jan 2016

   Demonstrates rewinding a microwave transformer for very high current; linked for the technique, alongside clear warnings that this kind of project is dangerous.