This is a mini spark gap tesla coil(SGTC),it is small but full funtion.The most important thing is that it can touch and don’t worry about the electric shock injury.The original intention that we design this decive,plz reference The following article
First briefly introduce this Tesla coil project:this is the third mini SGTC Project,It is basically the same as the previous three Project, except the part of the spark gap, we use the ball gap
The ball gap can be adjusted, the basic range is between 0.1-1mm, different gaps will lead to different discharge frequencies and charging voltage of the capacitor, so the discharge effect is different, you will feel the fun of trying………..
OK,let us start making it
Foam is buffered at the bottom
The transformer coil needs to be installed according to the picture, and the rough copper wire is the primary position.
Please look at the annotation on the picture
High voltage diode
Power indicator lamp,led long foot is +
Power socket and switch
this board is used to turn 12v DC into high frequency AC
on the back there is label “+”,”-” and “”out“”
red wire is +，yellow wire is –
soldering to the right place marked in picture below
follow the picture,do as picture………
ok,the board finished
now need connect the Primary coil and secondary coil to this board
first glue the bottom shell
In order to look good, we use UV curing glue, transparent
The perfectionist can be like us, but if you do not mind
Then just like you,Any glue is all right.
Assemble the board
The primary coil winds three turns(Although the bottom is reserved for 4 turns, but please winds only 3 turns,and must Clockwise)
Now solder the “IN” “Out” “L2”
The soldering place is best to do insulation treatment,
Prevent discharge(Cover exposed wires with tape)
The wire of the secondary coil is soldered to “L2″
In fact,” L2″ and ” Out” is connected…………
install the Nylon nut ………..
Copper column,make sure the hole on the Copper column is like picture
the Copper ball has hole,you need solder the Copper stick on the hole….
Adjust the distance of the copper ball, the interval should be less than 1mm, otherwise the voltage can not work through the air, it can not work, can be adjusted in the range of 0.1-1mm, can get different discharge effects
Determine the distance and lock with the nut………..
Ok,finished all the assemble,and about the metal top load,just put it on the Secondary coil………No need to fix
you can use any DC12v power suply(make sure the out put current is 1A-2A)
if you don’t want to use the plug,you can solder two wire directly to the board,and connect them to your DC12v power
ok,all is done,12v dc power,you can use it now(plz use it in dark place,you can see the spark and arc)
find a Incandescent lamp