The video by ElectroBOOM celebrates reaching 2 million subscribers. Mehdi, the host, performs an experiment with a Tesla coil and a microphone, creating high-voltage, high-frequency sound waves using his voice. He aims to modify the system to output his voice through the Tesla coil arcs. Mehdi goes through a process of trial and error, adjusting the circuit and reducing interference. Despite some success, the output remains distorted, but he accepts it as a unique sound suitable for death metal music. Mehdi also promotes KeySight's oscilloscopes, offers a giveaway, and thanks his patrons for their support.
Here are the key facts extracted from the text:
1. The video creator has reached 2 million subscribers.
2. The creator is celebrating by giving away 10 oscilloscopes from Keysight.
3. The oscilloscopes are being given away to thank the community for their support.
4. The creator has worked with Keysight before and believes in their product.
5. The creator has been using the oscilloscopes for over two years.
6. The creator is using a Tesla coil to output their voice over arcs.
7. The Tesla coil sends out 10-50 microsecond-wide pulses of around 300 kHz super high voltage AC.
8. The creator is using a microphone to amplify their voice and send it through the Tesla coil.
9. The creator is using a comparator circuit with a variable threshold to adjust the sensitivity of the microphone.
10. The creator is using an RC circuit with a time constant of below 30 microseconds to limit the pulse width.
11. The creator is using a laser optical transmitter to send the pulses through an optical fiber.
12. The creator is using a microcontroller to send turn-on commands to the Tesla coil.
13. The creator is using a ground sheet of aluminum foil to absorb radiation and reduce interference.
14. The creator is adjusting the pulse widths to reduce the output power of the Tesla coil and reduce interference.
15. The creator is using a plastic bag and grounded aluminum foil to shield the transmitter.
16. The creator is giving away 2 oscilloscopes to 2 schools, along with other tools they might need.
17. The remaining 8 oscilloscopes will be given away to viewers and patrons.
18. The creator's next goal is to reach 10 million subscribers.