need help from the pros!

[cakesibake]

hi everyone, im new to the forums and a noob with electronics. i wanted to know if these products are exactly the same. if there different can you point out the differences?

product 1 http://www2.towerhobbies.com/cgi-bin/WTI0001P?&I=LXUF47&P=V and
product
2http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&category%5Fname=CTLG%5F009%5F001%5F001%5F001&product%5Fid=273%2D1779

http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&category%5Fname=CTLG%5F009%5F001%5F001%5F001&product%5Fid=273%2D1776
compare this one^ to the first product

and finally compare this one to the first one
http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&category%5Fname=CTLG%5F009%5F001%5F001%5F002&product%5Fid=273%2D1667

which one would be the perfect or close match for product 1?

thanks for the help.
-j

 

[audioguru2]

Hi Cakes,
Welcome to our forum. ;D
I didn't see any spec's about whether the power supplies have their voltage regulated and are free of hum. They have a pretty big difference in their output current:
The 1st one can provide up to 7A of current.
The 2nd one can provide up to 1.5A.
The 3rd can provide up to 1A.

How much current does your application need? ???

 

[cakesibake]

the powersupply is needed for this charger http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXUF44&P=7, the 1st powersupply in my 1st post is the original one intended for the charger, i lost the powersupply and was looking for a cheaper alternative. thanks for the  help  ;D

 

[Codyhtml]

well you'll need one that can supply atleast 4.5 amps because that is one of the charge rates so you would burn up a 1.5amp powersupply