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2024-05-17, 04:30:26
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Author Topic: Homemade Leyden Jar Capacitor  (Read 14457 times)
Group: Guest
Hi all,

Leyden jar capacitor are one of the simple build around when is deal with capacitors.

https://www.youtube.com/watch?v=YpjY4TcilyY&list=UUSonN_EWtb4Dhq2r9WC6mFQ

Tom


   
Group: Guest
Hi all,

Leyden jar capacitor are one of the simple build around when is deal with capacitors.

https://www.youtube.com/watch?v=YpjY4TcilyY&list=UUSonN_EWtb4Dhq2r9WC6mFQ

Tom
       I tried to invoke the Reply with a mouse click, and there's an error message that the Youtube video was deleted.   Do you have an alternate one?
--Lee
   
Group: Guest
TR periodically deletes his videos, it seems. But there are many YT videos on the topic of Leyden jars.

Myself, I don't mess with them because I have dozens of 400 pF 30kV strontium titanate dielectric "doorknob" capacitors that are far better in most ways. They are much easier to work with, but you can make Leyden jars for essentially nothing out of scrap recyclable plastic bottles or buckets or whatever, whereas the doorknob caps can be expensive if you look for them on Ebay. I got mine for very cheap though, which is why I have so many.


I know you are disappointed because Tommey's video is gone, so I'll post one of mine for your amusement.

http://www.youtube.com/watch?v=vBFopZNF5iM
   

Group: Professor
Hero Member
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Posts: 3377
Myself, I don't mess with them because I have dozens of 400 pF 30kV strontium titanate dielectric "doorknob" capacitors that are far better in most ways.
How do capacities and voltage ratings of Leyden jars compare ?
   
Group: Guest
Well, it depends on the material and dimensions of the Leyden jar, of course. In the old days you'd say that they had "one jar" of capacitance. Wiki says for a "typical" one pint jar it is about 1 nF, but the voltage will depend on the thickness and material of the jar wall. For something like a polycarbonate beverage bottle it is probably around 5 kV or so. So a small parallel stack of the doorknobs I have would be superior in voltage and easy to make equivalent in capacity to a "typical" jar. The doorknobs have female-threaded terminals so it's easy to daisy-chain them with headless screws and to make connections to the ends.
   
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