- Dec 28, 2015
- Milwaukee area
At that price, you'll be selling them way below basic cost of the components, I think. Oak-Grigsby switch is about $12 retail alone. Then enclosure, terminals (for removable leads), clips and wire, jack. Let's not even begin with "business/approvals" overhead. Sure, you can cheap out on every component, and ignore the business end, but would you sleep at night?
How about a youtube video instead? I thought this one for a light bulb current limiter was a bit fast-paced (about 3 times as fast as Uncle Doug), but certainly comprehensive, with explanations along the way:
Does OSHA require a cage around that bulb?