... A Wimshurst machine produces quite strong electromagnetic pulses when it sparks. An oscilloscope ten meters away can easily register a burst of many volts...
... The oddest example of interference I've experienced was with a digital clock/thermometer. When I run my Van de Graaff downstairs in the kitchen, the...
In a 3 wire 220/110 volt household electrical system typically the neutral (white) wire is connected to the ground lug (green wire) in the circuit breaker...
... This is more-or-less the way that radios worked, Once Upon a Time : Spark-Gap Transmitter From Wikipedia, the free encyclopedia http://tinyurl.com/rdgm2x ...
A *Five gallon *leyden jar? That should stop a pacemaker at a hundred paces! ... I'll have to build one! Dan Petersen ... A Five gallon leyden jar? That should...
Dan: In my picture collection you can see the "bucket" and all the component parts. See one of my earlier posts (last few weeks) that describes how the bucket...
Most impressive photos! No wonder you stated "Not good" when someone got across it. A quick mental calculation suffices to remind one of the amount of energy...
... Of course, but I was puzzled why the clock, out of all the appliances and devices in the house, was the only thing affected. I use rabbit ear antennas on...
After tinkering with components for a year, I finally lashed together my first Tesla coil yesterday. Inspired by a design I saw in the Lindsay Pubs. reprint...
Recent developments . . . I fried one of the 20KV Chinese radio capacitors. There was a flash, and the coil went dead. I checked the cap with a meter and it's...
OK, so now I've seen something I've never heard of or seen before. The simple two post spark gap I made for my bipolar Tesla coil runs hot (not surprising), so...
Hi Paul, This is a bit off topic for this mailing list. You may wish to consider joining the Tesla Coil Mailing List (TCML) at www.pupman.com for extended...
Hi Todd: I have all posts forwarded to my e-mail and (sadly) there has been no activity for some time. I donated my 8' VDG to the local school system's Science...
I keep checking in but an injury has changed all my priorities. I can't work on fun stuff right now but I have picked up a couple of A.D. Moore's books on...
... Most certainly, I've just joined the the group and am finding the information in the posts invaluable in setting up my VDG. I am still a beginner at...
I monitor and occasionally contribute. I keep our 3' generator running. ... Earl Stirling Swiss Army Knife e x p l O r a t o r i u m 3601 Lyon St San...
I check in from time to time. I'm more of a Wimshurst guy, though. Still experimenting around... I attached a flat brass plate to one of my Wimshurst...
... This happens because of the interconnected Leyden jars. Probably the interconnection is floating, and so if you ground one terminal you increase the...
So fall is here, the humidity is falling -- time to fire up the VDG. I've been thinking of upgrading my VDG, which currently runs at about 1000 RPM using nylon...
... Grease and oil are not a so big problem. It's easy to clean eventual spills. Sealed ball bearings don't leak. I have used ball bearings in several VDG...
Ned: I have used OILITE bearings and Miniature roller bearings. In my VDGs with good results. Bearings would have to get quite warm to vaporize the lubricant...
Study the effects of proper belt crowning. A roller that is crowned properly will keep the belt running true. The degree of crowning is dependent on the belt...
Ned, I have also been using skateboard wheel bearings and while they eventually will leak, they usually start to get 'loud' before they leak so check them for...
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