Uploaded November 2025 | Updated September 2026, 2 weeks ago
An energy harvesting breakthrough in this free energy experiment! Watch how a tiny copper antenna scavenges enough power to flash an LED — even with the PC completely switched off. This video uncovers the surprising source hiding inside the setup, explains why the aluminium PC case behaves like an antenna, and shows how the HDMI cable was tracked down to form the unexpected RF/EM power supply.
Follow the experiment step-by-step, see how different antennas perform, and learn what actually keeps the LED running even when all cables are unplugged. If you're into electronics, off-grid energy, PC hardware quirks, RF noise harvesting, or experimental antennas — this one’s for you!
👍 Like, comment with your theories, and subscribe for more energy harvesting tests and DIY electronics builds.
Chapters
00:00 Introduction
00:06 Energy harvesting experiment overview
00:20 Testing different homemade antennas
00:47 LED flashing demonstration
01:06 PC powered off — does the LED still run?
01:43 Opening the mini-PC case
02:15 Investigating internal components
03:00 Strange antenna behavior and touch activation
04:00 Aluminium case conductivity discovery
04:36 Eliminating cables one by one
05:17 HDMI cable — the hidden power path
06:00 Energy harvesting mystery solved
06:45 Final thoughts & subscribe
Enjoy my Playlists -
Wireless Electricity: youtube.com/watch?v=yYoYyuR1KuI&list=PLIhGrBMUdssWpFSLW1hznwNqXWpCxhDRQ
Electronics Projects: youtube.com/watch?v=F4nfaYkGvQI&list=PLIhGrBMUdssWLQWtW4dWWGgh25XG3HXek
Solar Projects: youtube.com/watch?v=nmKfxI4MTTs&list=PLIhGrBMUdssXu9Pmduvopm02_7IMz8d3M
Reviews: youtube.com/watch?v=8jAJysXXsw8&list=PLIhGrBMUdssUYzRgA1mrp18zwpTtClmov
💼 Business and reviews email:
youtube.scoop273@passinbox.com
#energyharvesting #freeenergyexperiment #electronicsDIY #rfenergy #antennaexperiment
#scavengingelectricity #emenergyharvesting #pcmods #electronicsprojects #tinyantenna
#hdmipowerleak #offgridelectronics #makercommunity #techmystery
An energy harvesting breakthrough in this free energy experiment! Watch how a tiny copper antenna scavenges enough power to flash an LED — even with the PC completely switched off. This video uncovers the surprising source hiding inside the setup, explains why the aluminium PC case behaves like an antenna, and shows how the HDMI cable was tracked down to form the unexpected RF/EM power supply.
Follow the experiment step-by-step, see how different antennas perform, and learn what actually keeps the LED running even when all cables are unplugged. If you're into electronics, off-grid energy, PC hardware quirks, RF noise harvesting, or experimental antennas — this one’s for you!
👍 Like, comment with your theories, and subscribe for more energy harvesting tests and DIY electronics builds.
Chapters
00:00 Introduction
00:06 Energy harvesting experiment overview
00:20 Testing different homemade antennas
00:47 LED flashing demonstration
01:06 PC powered off — does the LED still run?
01:43 Opening the mini-PC case
02:15 Investigating internal components
03:00 Strange antenna behavior and touch activation
04:00 Aluminium case conductivity discovery
04:36 Eliminating cables one by one
05:17 HDMI cable — the hidden power path
06:00 Energy harvesting mystery solved
06:45 Final thoughts & subscribe
Enjoy my Playlists -
Wireless Electricity: youtube.com/watch?v=yYoYyuR1KuI&list=PLIhGrBMUdssWpFSLW1hznwNqXWpCxhDRQ
Electronics Projects: youtube.com/watch?v=F4nfaYkGvQI&list=PLIhGrBMUdssWLQWtW4dWWGgh25XG3HXek
Solar Projects: youtube.com/watch?v=nmKfxI4MTTs&list=PLIhGrBMUdssXu9Pmduvopm02_7IMz8d3M
Reviews: youtube.com/watch?v=8jAJysXXsw8&list=PLIhGrBMUdssUYzRgA1mrp18zwpTtClmov
💼 Business and reviews email:
youtube.scoop273@passinbox.com
#energyharvesting #freeenergyexperiment #electronicsDIY #rfenergy #antennaexperiment
#scavengingelectricity #emenergyharvesting #pcmods #electronicsprojects #tinyantenna
#hdmipowerleak #offgridelectronics #makercommunity #techmystery
