Just to quickly say thank you for the amazingly positive response (and/or thank you to those who are moderating the comments)! It's always scary being on someone else's channel, particularly with a large audience, but you've made me feel very welcome :)<br><br>(And yes, the red T-shirt was deliberate, although this was sadly the closest shade of red I could find),(reply>), could be working like crystal radio, resonant frequency, just pulling it out of the, the battery die years ago when they would die and ever sinse they are now acting as radio wave revisers aerials ever since? (not tuned to any frequency, just sucking  in everything, along to line a sparked gap generator works if you could use one without messing up everybody's radios systems today?,(reply>), +,(reply>), Bit late, but your presentation was fantastic.,(reply>), @planktonfun Most wrist watches from the eighties last 10 years actually. I still own one of them.,(reply>), @Alpäslan Arsälan 2 kilovolts a.k.a. 2,000 volts, for context the mains voltage in the UK is ~ 200 volts ( according to this video )