https://stream.echo6.co/videos/watch/fcace1f8-e875-4772-8d41-b92536c8585b I wondered how these LED filaments were configured inside, so I decided to explore one - using the splendid lamp X-ray device that AvE sent me. The internal construction of the filament is odd and not quite what I expected. The circuit is effectively 42 LEDs in series with a resistor in the base of the lamp. The filament can operate on either polarity due to the unusual rectifying system used. Note that I inadvertently got the LED rectifier diodes wrong at one end. It was very late when I made the video. Originally I wanted to draw out the schematic, but ran out of time. Here's a link to the video where AvE made the copper X-ray unit:- https://www.youtube.com/watch?v=ivrxXEUWHL8 If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:- http://www.bigclive.com/coffee.htm This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty. Mon, 13 Apr 2026 10:01:38 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/fcace1f8-e875-4772-8d41-b92536c8585b All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.