Battery question.

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KelticKhemist

New Member

• Dec 2, 2020

• #1

This may sound like a rookie question but I am a rookie. I thought I could get a spark by soldering copper wires to the negative and positive terminals of a 9V battery, then I tried 2 9V batteries. They wouldn't even warm up. What am I doing wrong? They were new batteries.

 

billybob

Active Member

• Dec 2, 2020

• #2

Are shorting them?

 

billybob

Active Member

• Dec 2, 2020

• #3

*are you

 

billybob

Active Member

• Dec 2, 2020

• #4

I used to have fun attaching the positive terminal of the batter to the negative terminal of another battery over and over until I had this giant chain of 9 volts in series. Then I got a wire and touched the two ends creating a good size spark and the sweet smell of burning insulation.

 

K

KelticKhemist

New Member

• Dec 2, 2020

• #5

Im not sure what you mean by am I shorting them. Yea earlier today I watched a video on youtube of someone connecting 500 of them! Looked like a cool project but the 2 9V batteries I bought yesterday were $13, so that's not within my budget.

 

billybob

Active Member

• Dec 3, 2020

• #6

What are you trying to do? Just make a spark from two 9 volts?

 

billybob

Active Member

• Dec 3, 2020

• #7

This is what I'm talking about..

 

S

shokjok

Member

• Dec 12, 2020

• #8

Do you need 45 volts for a miniature Tesla coil?

 

Dick Cappels

Active Member

• Dec 19, 2020

• #9

Just a couple of 9V batteries won't get you enough voltage for a very exciting exhibit.

 

billybob

Active Member

• Dec 20, 2020

• #10

I

shokjok said:

Do you need 45 volts for a miniature Tesla coil?

Click to expand...

If you get the resonance frequency right, You can get away with 12 volts for a slayer exciter circuit and still produce fairly good sized streamers from the top of the secondary.

 

billybob

Active Member

• Dec 20, 2020

• #11

I absolutly love the simplicity of a good slayer exciter