[sdiy] semi-beginner's op-amp question

[Kevin Lightner]

Not to hijack this thread, but I have a small opamp question also.

What is a good choice for an opamp for driving a long run of wire?
Dual opamp/single supply desired, but (like many people) could go 
bi-polar or use two.
Mostly to be used as a DC follower/driver.
Wire is about 22ga, solid copper, unshielded. Load is basically a 
vactrol: not very picky, but about 30 ma or so, max. Obviously the 
wire adds up to something also in resistance and capacitance, but 
it's overall not a very precision circuit.
Maybe many opamps would work, but from the general "you probably have 
these in stock" types, what would be best?

Thanks for any input. :)

-- 
Regards,
Kevin Lightner

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