Tesla History told by someone who was there.
https://www.facebook.com/61560106517507/videos/1732138894269106/?mibextid=NnVzG8
Electronics & Stuff, a lot about LEDs
Tesla History told by someone who was there.
https://www.facebook.com/61560106517507/videos/1732138894269106/?mibextid=NnVzG8