I use an LM317. It provides smaller current than the 117. I have been able
to consistently get the current limited to 1.7ma with the LM317 using a 1K
feedback resister at 38V supply. The TO-92 package is easy to work with as
well, it looks like a small transistor. And the cost is excellent. Only 50
cents at Digikey. I can post my schematic and parts list on the web if
anyone is interested. I designed it based on the best advice I gleaned from
Bob, Trem, and Jason on this list. It uses a small motor with a straw for
constant stirring. If you mount the whole thing on a plastic mason jar lid
with your screw type connectors pointing down it makes it a lot easier.
Just put your silver wire on the connector. (I prefer silver ribbon, you
get more surface area and increases capacitance between electrodes)
At 12:19 AM 5/7/03, you wrote:
> Some LM117's may work at lower current, but the performance is not
> guaranteed, and it may vary with changing load current. The result
> is the concentration of silver may change unpredictably.
+----- Bentonite Clay for sale -----+
http://pages.sbcglobal.net/davebe/clay.html
¦ David Bearrow ¦
¦ [email protected] ¦
+---- Phone: (972)722-8319 ----+
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