Class 2 transformer ( wal-wart ) ?

Andy Schick · Post by **Andy Schick** » 11 Feb 2004 4:56 pm

I need to replace a Class 2 transformer.
Its output is 9 vac 500 mA

My question,
I can find a 9 vac 800mA,
and the saleperson told me 800 mA is fine as the unit will only draw what it needs.
Is this true or will hurt my unit?
Thanks Andy

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Brad Sarno · Post by **Brad Sarno** » 11 Feb 2004 5:00 pm

The salesman speak truth.

Brad Sarno

Joey Ace · Post by **Joey Ace** » 11 Feb 2004 5:02 pm

Brad speaks the truth.

and since it's AC you don't have to be concerned about polarity.

C Dixon · Post by **C Dixon** » 11 Feb 2004 5:19 pm

The posters are correct. Think of this, your wife sends you to the store for a quart of milk. You discover they only have a half gallon. Will that do?

carl

Andy Schick · Post by **Andy Schick** » 11 Feb 2004 6:35 pm

Thanks for all the replies.

One more question if my input 120vac has a voltage drop of say 8vac therefore out at the outlet is 112vac. Will this effect the performance of the output 9vac of the wal- wart?
Thanks again.
Andy

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Joey Ace · Post by **Joey Ace** » 11 Feb 2004 6:59 pm

Yes. It will probably still work. A 10% tolerance is normal.