Newbie buidling an adjustable power supply

[ecologito]

Hello everybody, I am into building my own CD motors for R/C planes. Now I need to take this to the next step.

Since it is hard to keep batteries fully charged and to run more accurate tests on my motors I'd like to make my own DC adjustable power supply.

I was looking at stuff I might need:

Volt panel meter:
http://www.allelectronics.com/cgi-b...NEL_METER_.html

http://www.allelectronics.com/cgi-b...ETER,_20V_.html

Amp panel meter:
http://www.allelectronics.com/cgi-b...NEL_METER_.html



I am not sure but I am guessing I could use a computer power supply like this:
http://cgi.ebay.com/600w-Dual-Fans-ATX-Computer-Power-Supply-w-SATA-24-Pin_W0QQitemZ6839122939QQcategoryZ44949QQrdZ1QQcmdZViewItem

The power supply description says it has an output of +12V 24A ( perfect ) to test CD motors.


What I have no idea is how to connect them together or how to regulate volts ( 7 to 12 )and amps ( 1 to 24) going out of this jig. I have no electronics knowledge and there is only one thing more dangerous than an unknowledgable person, an unknowledgable person with initiative

If somebody could direct me on stuff I need and a diagram or if this is possible. I have no electronics Knowledge but I am highly interested on learning.