Hi Amigo,
I'm happy to see you looking along these lines. Myself and others I'm sure have used Bedini's circuits to make colloidal silver. I can't vouch for the quality as I haven't had it analyzed...was mostly playing around several years back. But it can certainly be done.
The #1 company in the world in my opinion making and selling colloidal silver or more properly termed "silver hydrosol" is
Natural Immunogenics and their silver product is Sovereign Silver. I know the people who own the company and they are straight up, honest and they know silver in and out.
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Smallest average particle size ever seen - 0.8 nm (nanometers) / 0.0008 microns / 8 Angstroms"
.0008 micros is crazy small!! To my understanding that is only like 3-5 atoms big.
Look at the links on this page for comparitive analysis at 100,000 X magnification!!
Natural-Immunogenics
PPM isn't the real key and the magic key on a good quality silver product is particle size. If your particle size is small enough, 10 ppm can outperform large particle size 100 ppm any day any time.
You could have 1000 ppm but if the particles are too big, they can't do their job.
Please search Movidyn in google:
movidyn - Google Search
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"Movidyn," they write, "is a form of colloidal silver, odorless, tasteless, and cheaper to produce than chlorine disinfectants." Only one part per billion of powdered Movidyn in water had a germicidal effect. "In a study of infected wells, it completely destroyed typhus, malaria, cholera, and amoebic dysentery. Drinking containers washed in Movidyn retained their germ-fighting abilities for several weeks." Not only was Movidyn a cost-effective prophylactic for most of the waterborne diseases that infect the Third World. "To the astonishment of the Soviet military, Movidyn also disinfected every germ warfare bacteria in the Soviet arsenal, even their newest designed poisons. In other words, Movidyn was too good."
Because of its threat to Soviet supremacy in the area of germ warfare, the authors report, the entire Czech factory was disassembled and removed to the Soviet Union. "To this day, the Movidyn formula seems to have been suppressed from the world....""
The only company in the world that is equal to or comes close to Movidyn quality is Natural Immunogenics in my opinion.
The silver that they throw away in their process while keeping the high quality stuff is still better than other companies "good stuff." You might be able to find out if they have released how they do it or if they have patents that you could replicate for personal use. I would personally try to imitate the best and I believe they have it.