I have used a 3 terminal regulator configured as a current regulator.
Worked well.
D

On 23 February 2010 20:31, YES NOPE9 <yes@nope9.com> wrote:
> I bought some cheepo $2 laser pointers at MicroCenter. =A0I am planning
> to replace the 3 button batteries with a 5V supply. =A0Will I have to
> current limit the supply ?
> Gus

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