I see no way that would limit current. That is the workings of an SCR, which is an on/off device. I have used an identical circuit many times (in fact I have a patent on using such a configuration as a PUT) in place of a low voltage scr or put.
Marshall Dave Lewis wrote: > Hi all, > A colleague of mine has come up with this useful circuit. It limits to > current to just under 1ma, but if you change the value of R1, you should be > able to set the current to what you like (within reason!). Don't get too > hung up if you can't find the correct transistors, just make sure they are > bipolar and PNP and NPN as per the diagram. > > Dave. > > ------------------------------------------------------------------------ > Name: I limit.gif > I limit.gif Type: GIF Image (image/gif) > Encoding: base64 -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: [email protected] Silver List archive: http://escribe.com/health/thesilverlist/index.html Address Off-Topic messages to: [email protected] OT Archive: http://escribe.com/health/silverofftopiclist/index.html List maintainer: Mike Devour <[email protected]>

