S & J Young wrote: > Fellow CS brewers, > > Not well known is the fact that for about $5 you can easily convert your > constant voltage CS generator (e.g. a three nine-volt battery setup) to one > that limits the current to assure small particle production and prevent > current "run-away". Thus your unit would then function the same as the > better "constant current" commercial units. I will try to describe this in > non-technical terms so many can take advantage of this. > > There is a device called a silicon FET current regulator diode that does the > trick. This is really a small integrated circuit, shaped like a small > rectifier diode, that limits current flow to a set value. The regulator > diodes are small cylinders with about a 1 inch wire coming out of each end > of the cylinder. One end of the cylinder is marked with a band around it.
I agree these can't be beat for simplicity for making a constant current unit. However, they are NOT integrated circuits, they are field effect transistors, with the gate tied to the source, and specified for a specific Iss current. (FET stands for field effect transistor). Make sure not to hook them up backwards, or they will act more like a resistor than a current limit. Marshall -- The silver-list is a moderated forum for discussion of colloidal silver. Instructions for unsubscribing may be found at: http://silverlist.org To post, address your message to: [email protected] Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <[email protected]>
