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Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4059
Hi, Is this appropriate to discuss on here?
I had some success a while back generating by accident a "force beam" effect that somehow knocked over a radio inside a closed cupboard. I am not precisely sure what transpired but the setup was simple and should be easy to replicate as it was all off-the-shelf parts. Has been discussed here before but maybe its time to dig it up and see if it can be improved?
Setup from memory was six CCFL drivers all running on 12V DC SLA, with 120K resistors from "low" side to Gnd. HV outputs went through five rectifier diodes pulled from camera flash inverters through a very simple Veroboard spark gap to a resonant circuit with two or more 1uF 1KV PP capacitors that I had selected for a resonant circuit in the (hopefully) MHz range at least, though primary resonance would have been a lot lower based on EPE coil.
Primary was IIRC 11 turns of bell wire in two layers inside the secondary, secondary was around 1500T of clock wire on a red former with a hollow fishing weight (copper) as its breakout point Epoxied onto the end, all sealed up with Krylon.
I'd previously had maybe 2-5mm corona on the beast but during testing the power suddenly jumped and heard a "BANG!" from across the room. Thought nothing of it but noticed hours later that a radio had been knocked from its end over onto its side in the cupboard.
Is there any possible way that the field from the TC might have been strong or directional enough to affect something that far away, or the hole in the secondary breakout acted like some sort of lens? Determined later that the radio had an unusually long ferrite rod (1970s tech) so its possible that the TC resonated with that and caused it to move or acted as an induction heater which was part of my original plan. The movement would have been maybe 5-6mm but enough if it was already unbalanced. I am reluctant to discuss this on here but really want to know if this is a new effect or something others have documented.
Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4059
I did! the radio didn't work right before but did notice some of the transistors seemed damaged when it finally got dismantled for parts. One had a C-B short, germaniums can do this especially over time due to tin whiskering.
Interesting to note that the actual core ie specially made secondary got donated to someone on here, can anyone recall who? I haven't heard from them in several years.
I could probably rebuild it but this time use a lot more power and parts from LCD TV cold cathode drivers. It seemed like a good way to generate monstrous voltages which could be handy as a cheaper alternative to a SSTC now you can get GaN FETs. I vaporized a few steel pins with that driver, see "conundrum2007"
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Force beam effect?
