Here is a link to a video of Hairpin Device I just made:
http://www.youtube.com/watch?v=IyyT4qrK6f8 (http://www.youtube.com/watch?v=IyyT4qrK6f8)
For you perusal here is a link to my analyis of the hairpin circuit:
http://www.youtube.com/watch?v=-iPyII5FZR4 (http://www.youtube.com/watch?v=-iPyII5FZR4)
I managed to delete my analysis video by mistake, so I re-uploaded it:
www.youtube.com/watch?v=wU8LYiLLpGs
A second discussion and demo video is up. I feature a couple of quenching methods and some incandescent bulbs in this one.:
http://www.youtube.com/watch?v=7BHBogoeIDI (http://www.youtube.com/watch?v=7BHBogoeIDI)
Here is a link to a second, more detailed analysis video:
https://www.youtube.com/watch?v=N7gPeIVVy0A (https://www.youtube.com/watch?v=N7gPeIVVy0A)
In this video I explain just how and where the hairpin circuit generates HF waves.