I have a few 1" teflon stir bars $7 each, free shipping. [That's my cost ]
I stopped selling them because they ARE too expensive and don't work as
well as the ones I make using much stronger magnets.
Those..a set of 2 for $3..free shipping.
Cheezy and primitive looking magnets in a plastic tube, but they "hook
up" like nobodies bidness.
PS I also have a number of the older circuit boards that were made for the
wrong power input plug.
$5...you populate it with common parts from the "shack"
It'll save several hours of running wires on a breadboard.
Add $5 for a little black box to house it in. [the shack doesn't have those ]
Current control, adjustable or "set" from microamps to around 6 milliamps.
Automatic water monitoring "off" function...adjustable or "set"
AC or DC input up to 36 volts...DC only output.
Ode
At 08:52 AM 11/11/2007 -0600, you wrote:
Thanks for the information on the measurements for silver.
I would like to have a generator that makes the cs by itself but I can't
afford one.
I have a great brother who knows how to do all that stuff though so he is
going to build the generating part for me.
I know how to make a magnetic stirrer but I need a teflon coated stir bar.
These things were all over the place when I was working as a laboratory
tech; nobody ever gave them a thought, but since I retired I found out
just how expensive they are. Anyone know where I can get one at a
reasonable price? $90 for 12 is too much since I only need one. Didn't
find any on Ebay.
Or maybe there is something else I can use for the stir bar......?
Linda
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