adjustable voltage regulator help

im looking for a adjustable voltage regulator

input would be 12v from a car battery so it may range from 10-14v

would have to be adjustable output with min ranges 4.5v-0.5v

easy to turn knob that you can turn with you fingers would be nice too

i don't know how to look for parts like this im a programmer not a engineer.

thanks in advance

How much current?

no more then 10A

gezzuzz said:

no more then 10A

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That's an EXTREMELY high current as far as electronics go, making it much more complicated, expensive, and probably large.

What is needed for?.

The lm338k is 8 amp and the ips338av is the same except it is in a TO-3 case. They are both real nice. I usually just use the lm317t, but it is only 1.5 amps and you say you want 10 (which is hard to believe).