Original poster: Stan <wsmg@xxxxxxxxxx> Hey Pete,I'm thinking that all the time you have been trying to get this classroom science lab coil to be better then it was designed to be, you could of wound a small coil with tunning capablities and had more fun. Those were designed to be cheap and be safe for a classroom(nothing wrong with that). I'm sorry to be so negitive, but they aren't as inspiring as a real coil. Kids these days need to be inspired. Please don't be offended, I'm not an expert, I've only been coiling for just over a year since going to D C's 05 Teslathon, but I have come a long way. Check it out.
http://www.ispdial.com/SkyXPRess_net/MyHomePage/config.cfm?kName=wsmgclick on pictures to the left. That's just a few pics, we are working on a DVD that will be much better. If you need a free nst I have a bunch of 6k, 7.5k, 25ma with the wires that come off of them (old) that work just pay the shipping. If your interested contact me off list.
Stan Tesla list wrote:
Original poster: Mddeming@xxxxxxxIn a message dated 11/3/06 7:16:53 P.M. Eastern Standard Time, tesla@xxxxxxxxxx writes:While it was apart I tried to measure the resonant frequncies with a scope and signal generator. The primary dips at 217 kHz. The secondary dipped at 245 kHz. I found the top ball was not electrically connected. With that connected the secondary dips at 236 kHz. I wonder if anyone has any idea of how to tune this coil. Note the primary is encased in rubbery compound. Thanks Pete from Virginia hi Pete,Since streamer formation tends to pull down the secondary frequency, you are probably very, very close to where you want to be without additional tuning.Matt D.