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Does the size\weight of an NST matter? Answered

Hi everybody,
I have at work two old school iron core neon sign transformers. They are both rated at 10KV 100mA.
The thing is, one of them is only 2/3 of the size and weight of the other.  

Assuming they are both in good condition, would there be any difference in performance, durability, reliability or whatever between the two?  
I want to build a Jacobs ladder, and was wondering which one would work best...

Thanks for the help!

Tags:neontransformerhigh voltagevoltagesignJacobs ladderNST

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steveastrouk
steveastrouk

Best Answer 7 years ago

In transformers, you can generally say that bigger is better (cooler) smaller is better (weight - but hotter) given a choice, the bigger will be more efficient, and weight isn't likely to be an issue.

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Morgantao
Morgantao

7 years ago

Thanks for the answers.
Now I just figure out a way to sneak it home without my wife kicking me out :P

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The MadScientist
The MadScientist

7 years ago

They should be pretty much the same the difference in size and weight is most likely to do with how much tar each transformer is submerged in.

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Josehf Murchison
Josehf Murchison

7 years ago

Electrically no however weight and shape can be hard to balance or mount and smaller is hotter.