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Yo Colin, Hoot, and any other elecro buffs.

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dimmreaper

Senior Member
Joined
Dec 16, 2000
Location
home
I just don't get it. What's the real advantage to using a variable linear voltage regulator instead of just using a 25Ohm rheostat? Both just work like a resistor, so were do you gain anything?

Seems to me a variable step down switching supply might have some advantages (less heat, more efficient), but just can't see it with a linear design.
 
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