this is still a simple mini tesla coil
the Circuit diagram in the Intro
use a 12v DC can start the tesla coil
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Step 1: Soldering Resistance and Capacitance
Step 2: Two Led
one led is for the power indicator light,one is for the tesla coil Resonance indicator
in the middle is the "-" foot,the outside is "+"
see the picture
Step 3: Triode
Step 4: Power Socket
Step 5: Secondary Coil
Use a knife to scrape off the surface of the paint.this is important,do not forget do this
then soldering to the right place
Step 6: Glue the Coil on the Pcb
Step 7: Test
dc 12v start the tesla coil,if all ok,two led will light,and you can see the spark
put the ball on the top,maybe one led will not light,it is ok,use a Fluorescent lamp,the Fluorescent lamp will light