How to build capacitor.

WBahn

Joined Mar 31, 2012
24,700
Are you talking about a homemade capacitor just for the fun of it, or how commercial capacitors of the type you find in common electronics are made, or how large industrial capacitors are made?
 

WBahn

Joined Mar 31, 2012
24,700
I've made a couple of 'grins and giggles' capacitors for crystal radio projects. In one case I took wrappers for Lindor truffles, which have a thin plastic film (mylar?) with aluminum foil on one side. I used several of these, staggered to give me two edge regions to clip onto. Another capacitor I made was just taping two sheets of aluminum foil on opposing halves of a two liter pop bottle. I varied the capacitor by changing the amount of water in the bottle. It didn't work too great, but it did let me tune the radio somewhat according to how much water was in the bottle.

A fellow student when I was an undergrad made a large high voltage oil capacitor by putting several hundred sheets of aluminum foil separated by wax paper, IIRC, in a cardboard box (with a plastic trash liner) that was about two feet on a side. I never did hear how well that ended up working out for his project.
 

Thread Starter

RRITESH KAKKAR

Joined Jun 29, 2010
2,823
Are you talking about a homemade capacitor just for the fun of it, or how commercial capacitors of the type you find in common electronics are made, or how large industrial capacitors are made?
we want to manufacturing of in india than buying from china.
 

WBahn

Joined Mar 31, 2012
24,700
we want to manufacturing of in india than buying from china.
Who is "we"?

You really think that you are going to stand up a capacitor manufacturing plant that can complete with plants that produce literally billions of capacitors a year?

Do you have a few hundred million dollars (U.S.) for capital investment to build the plant.
 

WBahn

Joined Mar 31, 2012
24,700
mean our coming engineer in college university self entrepreneur.
And what is this "coming engineer" going to use for capital?

How many capacitors do they intend to make each year?

Are they only going to make capacitors to support the products they are making, or are they going to go in the business of selling capacitors as a commodity good?
 

Thread Starter

RRITESH KAKKAR

Joined Jun 29, 2010
2,823
India population 1.252 billion (2013)
us population 318.9 million (2014)
uk population 64.1 million (2013)
canada population 35.16 million (2013)
pakistan population 182.1 million (2013)
korea population 50.22 million (2013)
china population 1.357 billion (2013)
russia population 143.5 million (2013)
vietnam population 2013 89.71 million (2013)
 

WBahn

Joined Mar 31, 2012
24,700
So you guys want to build a full manufacturing facility so that you can pay about $2 per capacitor with months of lead time all to avoid buying capacitors from China for $0.02 each with a couple weeks lead time.

Smart business plan.
 

WBahn

Joined Mar 31, 2012
24,700
India population 1.252 billion (2013)
us population 318.9 million (2014)
uk population 64.1 million (2013)
canada population 35.16 million (2013)
pakistan population 182.1 million (2013)
korea population 50.22 million (2013)
china population 1.357 billion (2013)
russia population 143.5 million (2013)
vietnam population 2013 89.71 million (2013)
So?

If this has some relevance to the topic of the thread, then explain it. Otherwise, stop posting irrelevant information.
 

spinnaker

Joined Oct 29, 2009
7,815
So you guys want to build a full manufacturing facility so that you can pay about $2 per capacitor with months of lead time all to avoid buying capacitors from China for $0.02 each with a couple weeks lead time.

Smart business plan.

And I might add that if you have to ask how to build a capacitor you are no where close to having the expertise to create a company that builds capacitors.
 

GopherT

Joined Nov 23, 2012
7,983
@WBahn, you asked
Are they only going to make capacitors to support the products they are making, or are they going to go in the business of selling capacitors as a commodity good?
He answered...

no, the capacitor will be used in India only.
You asked...

How many capacitors do they intend to make each year?

He answered the best way he could using population and inferring proportional market size ( not that your question was relevant to the basic question of "how a capacitor is made?")...

India population 1.252 billion (2013)
us population 318.9 million (2014)
uk population 64.1 million (2013)
canada population 35.16 million (2013)
pakistan population 182.1 million (2013)
korea population 50.22 million (2013)
china population 1.357 billion (2013)
russia population 143.5 million (2013)
vietnam population 2013 89.71 million (2013)
Then you start acting like this is your thread and he is interfering.

So?

If this has some relevance to the topic of the thread, then explain it. Otherwise, stop posting irrelevant information.
Instead of asking him to stop posting irrelevant information, why don't you stop asking irrelevant questions. Ignore him if you don't like his questions. It is his thread. He is not bothering you or anyone else.
Also, check out the posts of @Wendy concerning trolling and kindness.
 
Hello,
How to build capacitor?
To render a meaningful response we need more information - For starters parameters such as: construction, dielectric material, ESR, maximum working EMF, etc... may be helpful...
Alternatively, please describe the anticipated/desired application? ---- The noun 'Capacitor' covers a lot of 'ground'....

Best regards
HP:)
 
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