 ETG spark gap firing
|
|
|
Wizzup
|
|
Registered Member #3302
Joined: Sun Oct 10 2010, 02:21PM
Location: Finland
Posts: 42
|
I found a circuit made by Lomy here: 
His design uses a simple homemade air-core HV pulse transformer in series with the ETG and cap bank and by watching his videos it seems to work very well with just 200J of energy using just air as "fuel". I checked with an inductor simulator that if i make my secondary 12 turns from 20mm2 cable i have it will have just 1mOhm resistance and about 250nH inductance.
I will also use few kV higher voltage than he is, so it should work well with some fewer secondary turns, same time lowering the resistance a bit.
Do you think i will need a big kickback diode for the secondary or will i be good without one? Regarding his schematic he doesnt use one.
|
|
Back to top
|
|
|
MrFlatox
|
|
Registered Member #9349
Joined: Mon Jan 07 2013, 08:50AM
Location: France
Posts: 102
|
Very nice find !
What do you mean by air core transformer ? just wind the primay and secondary around a plastic tube for exemple ?
|
|
Back to top
|
|
|
Wizzup
|
|
Registered Member #3302
Joined: Sun Oct 10 2010, 02:21PM
Location: Finland
Posts: 42
|
With air-core i meant that there is no iron rod or anything in the core, so its made on top of plastic pipe or something just as you said.
|
|
Back to top
|
|
Moderator(s): Chris Russell, Noelle, Alex, Tesladownunder, Dave Marshall, Dave Billington, Bjørn, Steve Conner, Wolfram, Kizmo, Mads Barnkob
|
|
Powered by e107 Forum System
|
