If you want to switch at once per second, I figure the voltage you would need would be about 170 volts.
Try f = v/166 or v = f*166 for a rough estimate of the frequency verses voltage. Where f is in hertz, and voltage is in volts. Thus for 10,000 volts we get 60 htz, and for 27 volts we get about once every 6 seconds. Since most people report that switching every 30 or so seconds seems to be good for 27 volts, it may not be linear. Marshall Dan Nave wrote: > Are you implying that if you switch the polarity at a 1 second rate > for a setup using approximately 30 volts that you would not have to > use a stirrer? That the silver would disperse into the water > sufficiently so that stirring would not be necessary? Or would you > still need some sort of stirring? Also, what electrode spacing do you > recommend and what are the implications of the different electrode > spacings? > > Re: CS>Am I doing it wrong? > > * From: Marshall Dudley (view other messages by this author) > * Date: Fri, 28 Mar 2003 06:52:32 > > ----------------------------------------------------------------------- > > A flyback will not work properly. The voltage needed is proportional to the > frequency, and a > flyback operates at around 16 KHZ. You can use about one cycle per minute > for 30 Volts, and > 60 at 10 KV. For 15 KHZ it would likely take millions of volts. Remember > you have to suck > the ions far enough away from the electrode for a signinficant number of them > to not be > sucked back during the reverse half cycle for it to work properly. > > Marshall > > Jim wrote: > > > We have an electronics store locally that has lots of used transformers > > neon sign, or possibly a fly back transformer. I've got plenty of time, > > and like to experiment, I'll go see what I can get. > > > > Jim > > > > Marshall Dudley wrote: > > > Pretty easy to do with a 15KV neon sign transformer. > > > > > > Marshall > > > > > > Jim wrote: > > > > > > > > >>Sounds like an interesting project to build a 10,000 V AC generator. I > > >>might give it a try. > > >> > > >>Thanks Marshall > > >> > > >>Jim > > >> > > >>Marshall Dudley wrote: > > >> > > >>>Jim wrote: > > >>> > > >>> > > >>> > > >>>>I should have said gold, I've made it fast and the color is gold, if I > > >>>>make it extremely slow, the color is clearer. I've tried 15 V ac with > > >>>>no results, I use a 17 V DC power supply and use resistance to limit the > > >>>>current to slow the process down. > > >>> > > >>> > > >>>I used 30 VAC one time for over a week and got nothing. Unless you have > > >>>enough > voltage > > > >>>to pull the ions fairly far from the anode during a half cycle, they get > > >>>sucked > right > > > >>>back to it when it is the cathode and redeposited. Typically when using > > >>>AC, > one uses > > > >>>about 10,000 volts. > > >>> > > >>>Marshall > >
