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If you change the spark gap slightly, or capacity slightly, or the input current or voltage, the Phantoms will change from straight lines to thick positive appearance sparks - like thick tree branches. It gets very interesting. Also a black room without lights (and a shielded spark gap) will really enhance these effects, because the eyes can better adjust to the darkness.
Why "shielded spark gap" like RF shield, I have never heard of shielded one ?
Love your work. I dont have any glow from it yet but I thought Id share a picture of the tower my friend is working on. You can see the conical coil in the center and the primary at its base.
All the tower is made from wood. The sphere is littered with brass studs.
Hopefully with some help we can get a purple glow happening.
Please post some "working" photos when operating..
How the heck were all of the brass studs made, or from where were they obtained?
Also If i can see correctly there is a washing machine motor (one with all stator coils lying flat on the bench). I know some people who re-configure those and they make good home-made wind turbine/generators. Is that what that one is for?
Why "shielded spark gap" like RF shield, I have never heard of shielded one ?
Yep I meant from light only on that...well, sound too!
Spark gaps? Slivovica is much more interesting! Wow. I have some homemade from Slovakia here. Nice stuff! Fernet, Borovicka, Becherovka, some unusual Caraway flavoured Aakvavit from Denmark, and some bottles of real magic...140 proof Absinth! I carried X-Ray and Crookes tubes by hand through Prague, Zurich, and to Miami. Had tons of nice liquids filling the suitcase, but at that time fines for Absinth was more than I make in a year. And suddenly, after pass control in Miami airport (and explaining what X-Ray tubes were in several languages) my luggage was attacked by dogs.
Turns out they were smelling a box of "Friskies Darling" I brought for my cats. But no easy escape...I was detained while they checked it for mad cow disease. Finally, when noone was looking I hauled *** out of the airport and escaped with alcohol and rare tubes intact!
Beer for quenching gaps? Oh no, water-cooling is good enough for them. They don't need to get greedy.
Funny. I don't know about everyone else, but when I'm in Europe I can live happy as a cat with bread, beer, and smalec. America is a wonderful place to live, despite everything, but these three magic ingredients simply aren't the same here. Maybe its nostalgia.
I am working on some extra special self-cooled spark gaps. Will post some pictures this weekend, hopefully.
Love your work. I dont have any glow from it yet but I thought Id share a picture of the tower my friend is working on. You can see the conical coil in the center and the primary at its base.
All the tower is made from wood. The sphere is littered with brass studs.
Hopefully with some help we can get a purple glow happening.
Great job. I have tried to wind 100 conical coils and they all go to the bin. I can't do it. I make a mess of them everytime! And that one looks really nice!
This thread only goes to show that there wouldn't be any scientific and engineering progress without alcoholics on board.
As for the conical coils they're really quite easy to wind if you use so called "wet winding". Basically when winding, wire is going through epoxy resin which is already in the gelling phase (not necessarily gelling but it helps) so it's already a bit sticky. Sticky epoxy (or better yet a good dedicated dielectric polyurethane) helps keeping everything together and when everything is done you just have to wait for a few hours and you have extremely compact coil. The problem is that you ended up with something you cannot put in oil because it won't have any effect (oil cannot get between windings).
Ah, and of course you have to start winding from the base of the cone.
I use rosin : Rosin - Wikipedia, the free encyclopedia
I dissolve it with alcohol.It taken a few days to make nice solution but at the end you get useful paint which is going sticky when dry.
This thread only goes to show that there wouldn't be any scientific and engineering progress without alcoholics on board.
As for the conical coils they're really quite easy to wind if you use so called "wet winding". Basically when winding, wire is going through epoxy resin which is already in the gelling phase (not necessarily gelling but it helps) so it's already a bit sticky. Sticky epoxy (or better yet a good dedicated dielectric polyurethane) helps keeping everything together and when everything is done you just have to wait for a few hours and you have extremely compact coil. The problem is that you ended up with something you cannot put in oil because it won't have any effect (oil cannot get between windings).
Ah, and of course you have to start winding from the base of the cone.
Mwahhhh Too true. About the beer that is....
Double sided tape can be handy for winding odd shaped coils too.
Brass studs are just that....little brass thumb tacks.
And yes that is a F&P motor in the backround. Im working on a circuit for its three phases.
Regards
"Once you've come to the conclusion that what what you know already is all you need to know, then you have a degree in disinterest." - John Dobson
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