12V DC Tesla Coil (SGTC), 555 + MOSFET + ignition coil

This TC is powered by a Triumph motorbike ignition coil driven by a 555 and a 2SK899 MOSFET at 12V.

To protect the LV side I have a .22uF 440V cap across the LV side of the coil, in parallel with a disposable camera neon indicator and 4K7 across the LV side of the coil to monitor back EMF.

The HV is half-wave rectified by a diode string (15 x 1N4001 and 4 x 3108) and charges a single 2L saltwater cap.

It runs cool, with no MOSFET heating.

Power input: 500mA @ 12VDC (6W)
Primary: 8.5 turns 1mm copper, 2mm spacing on 64mm PP former
Secondary: ~850 turns 0.2mm enamelled copper on 40mm PVC former
Topload: ~60mm alu foil-covered Xmas tree ball
Streamer length: ~1.5-2" to air
Arc length: ~3" to grounded rod
Spark Gap: Static, 4mm
Tank cap: ~1nF saltwater cap (2L lemonade bottle)
BPS: ~ 120?

Category:

Entertainment

Tags:

• tesla
• coil
• ignition
• 555
• mosfet
• spark
• gap
• sgtc
• high
• voltage

[john29302]

good work...why is the spark gap so loud? uh...a bit of a tease...neato torpedo look what you can do...and that serves no purpose . if you want to market something like this....simply open source it and knock off the pompousness...if you think your work will be stolen...see a doctor

[c0ldcity]

thanks! it's loud because it's under a sheet of cardboard as people kept staring at the spark gap (not good) instead of the coil!

re the rest... uh... ok!

[teddybear114]

Really nicely done, check my DC TC out!

[c0ldcity]

thanks -- yours looks great

[technodude56]

hey I am also building a tesla coil. can u send me your schematics to my email satvik.yalmoor@ gmail.com

[MrJouleJr]

@c0ldcity could you please send me the schematics too. pm me and ill give you my email

[lokeycmos]

cool!

[Landotter1]

Why is the discharge so slow. Why the rectifiers. The pwm is square wave in one direction not both. I don't understand the diodes... You only have half wave goiong to the motor bike coil already....

[hulago1234]

how did u make the homemade capacitor? And did u measure its capacitance? Many thanks.

[969SobiasTokeS696]

i like your video because it shows a TC constructed from parts you can easily get ... or homemade stuff

[rauman1000]

wau

[darshan2228]

sir pls send me all diagrams and materials to build this project i want to assemble this project ....................pls

my e mail id is

npatelxxx@yahoo.com

ypxxx_143@yahoo.co.in

[jeffpicks]

Dude... listen to your mommy and MAKE YOUR BED! now that you've raised a beard she's not going to clean your room anymore.

[08Kutt]

very good for 6w!!!