Ode says"
>Abeland [atlasnova] is a decent guy and that design will work, but just a 
>bit more will make it work really well


  With 2 digital meters [the one shown is from harborfreight.com @ about $7 
each..$3 on sale ]
One meter to show current, the other to show voltage..
A 10K  potentiometer... $1.50 from the "shack" [Just the resistor works 
pretty good if it's the right value for the rest of the variables ]
and a way to repeatably mount the electrodes, parallel, at a "set" distance.

One meter in series to show current, the other in parallel to show voltage 
drop as you turn the potentiometer to keep the current constant..when the 
voltage reaches a point where you like the results..stop.
  That will be controlled and repeatable.
  Keep the current low enough and that setup will make very nice CS.

ode"

Hi Ode,

Thanks for the compliment.  It is quite true that this setup will not make 
consistently good colloidal silver.  As a matter of fact, I have deliberately 
made it that way.  I would like people to go ahead make some yellow stuff by 
letting it go too long.  Keep in mind the "starter" word is imperative.  
Hopefully, they will get tired of messing about with batteries and alligator 
and clips move to one of my proper colloidal silver generator kits that have a 
circuit board to securely mount the electrodes and monitor of both the voltage 
across the cell and the current in microamps. 

http://imgs.inkfrog.com/pix/abeland1/cspcb.jpg

I use a 1K resistor and have the user place the voltmeter on the two volt 
range.  This ends up reading microamps.  I have found myself that if I measure 
current directly with one of these meters, I will invariably put it across a 
low impedance voltage source.  Good night meter.  In the old days of the 
Simpsons and the Triplets you could at least easily open them up and replace 
the fuse but I don't think I'd want to try to do that on one of these $5.00 
meters.  I get these myself from my local HarborFreight and try to get them 
when they're on sale.  You gave me a good idea, I will, when someone buys one 
of my proper setups, offer a second meter at five bucks. It won't cost me any 
more to ship as it will fit into the same box.  When I get someone who simply 
cannot cope with the idea of doing the amount of work that I'm asking of them, 
I cheerfully recommend the silver puppy.