I tried the capacitor start as many ways as I could think of and could only get the motor to "try" to start...backwards. Could probably get by that with a polarity reversing switch/relay or something but it was getting more complicated than it was worth. I gave it up and went with a simple starter button to short to a higher start voltage. Giving the shaft a twist works too. Ken
At 10:49 AM 6/11/01 +0000, you wrote: >With all this discussion of stirring motors, let me add a comment... > >I've got a small motor on my unit now, and run it off the same supply >I'm using for the cell voltage. > >I use one set of series resistors to limit cell current, and another >set of series resistors to limit the motor voltage/current to the least >that will reliably *run* the motor. > >Note, however, that most motors will *run* at a lower voltage than they >need to *start*. So far, as I've got the thing breadboarded, I've just >been briefly shorting out part of the dropping resistor network to >temporarily increase voltage to get the motor to start. > >In the interest of keeping things as simple as possible, I think that >an electrolytic capacitor accross part of the dropping network for the >motor would do the same thing as I'm doing with a brief short circuit. > >Something like this (use monospaced font): > > |-------[R1]-----> to cell anode electrode > | >Supply (+) >--| > | |---[C1]---| > |-------| |-----[R3]---> to motor > |---[R2]---| > >Thoughts? Can anybody work out componant values for this circuit for >the Radio Shack 99 cent motor? I'm using a rather odd motor and power >supply, so my setup isn't readily copied by others... > >Be well, > >Mike D. > >[Mike Devour, Citizen, Patriot, Libertarian] >[[email protected] ] >[Speaking only for myself... ] > > >-- >The silver-list is a moderated forum for discussion of colloidal silver. > >To join or quit silver-list or silver-digest send an e-mail message to: >[email protected] -or- [email protected] >with the word subscribe or unsubscribe in the SUBJECT line. > >To post, address your message to: [email protected] >Silver-list archive: http://escribe.com/health/thesilverlist/index.html >List maintainer: Mike Devour <[email protected]> > >
