Well, here is one good use of them, make a High Voltage Water Bottle Capacitor! The bottle capacitor is very similar to the Water Leyden Jar I made a while ago, but the only difference is it uses a bottle, not a jar.
The bottle capacitor is a high voltage capacitor, high voltage capacitors are one of the most dangerous things you could ever use in electronics. A large charged bottle capacitor is potentially lethal if you touch its live terminals, and a small charged bottle capacitor can cause injury and it still be lethal in some ways.
So, I am not responsible what ever you do with this information and bottle capacitor.
Step 1: What You Will Need...
- A bottle of any kind
- Stainless steel nail
- Aluminum foil (or even better, use AL foil tape if you have any!)
- Tape (you won't need it if you are going to use foil tape
Step 2: And the Tools...
- Hot glue (or anything to seal up the container to prevent water coming out)
Step 3: Take the Sticky Stuff Off!
Step 4: Fill It Up!
Step 5: Add in the Salt...
Step 6: Hammer in the Nail!
Step 7: Seal It.
Step 8: Wrap the Bottle With Foil...
You can use something much much better than foil if you have, use foil tape. You can just simply tape around the bottle and not have a hard time wrapping the bottle with foil and tape (or glue).
Step 9: Attach the Wire to the Foil...
Step 10: Completed!
I also added a magnet and a ball to give it a "Leyden Jar" like.
I measured the capacitance of my bottle capacitor and my meter reads 1842pF (1.8nF)! That is very high for a cheap high voltage capacitor!
Step 11: What to Use It For.
Or even far more dangerous, treat it as a normal high voltage capacitor, you can use it as a capacitor bank for the tesla coil, or something like that.
I tested my bottle capacitor with high voltage power supply to see if it works. Never ever try that, unless you have good experiences with high voltage.
Well, I hoped you enjoyed this instructable!
If you have any questions, or need help, or found an error, or anything, make a comment! I like comments! :)