30V AC Wall Wart

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30V AC Wall Wart

Postby jkhuri44 » Thu Jul 10, 2014 5:47 pm

Hi Guys,
Does anyone know if there exists 30V ac wall warts (not DC)
i've built a headphone amp which requires this i think it draws max 500mA or less, but i cant remember....
buis there anything in wall wart format with this voltage??
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Re: 30V AC Wall Wart

Postby Alastair Reynolds » Fri Jul 11, 2014 6:38 am

Not something you'll find easily if at all. Buy a small toroidal from Jaycar or Altronics and stick it in a box.it will be quieter and give better regulation that any wall wart ever will.
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Re: 30V AC Wall Wart

Postby jkhuri44 » Fri Jul 11, 2014 9:24 am

i've seen only 1 thing saying that old printers use 30V ac wall warts, but that will be far and few between...
guess i'll be taking it back to a tech to wire up for mains. haha.
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Re: 30V AC Wall Wart

Postby chris p » Fri Jul 11, 2014 9:33 am

I think Jaycar et al have 15-0 + 15-0 transformers which wired in series would give 30V AC power.

As always there is a JLM kit - http://www.jlmaudio.com/shop/index.php?_a=viewProd&productId=13
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Re: 30V AC Wall Wart

Postby jkhuri44 » Fri Jul 11, 2014 9:43 am

that would still require mains work, so i'm just gonna give it back to the tech and have him chuck in a regular torroidal....once i do the metalwork for it.
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