> Thanks for the feeback Ivan. > What is the difference between AC and DC cd production? >
Hi Edward, The mechanics of stripping electrons from elemental silver and causing Ag+ ions to enter the water is the same. Both methods require a positive electrode (anode) and a negative electrode (cathode). The approach is different however. DC generation, especially low voltage (LVDC) applies a potential to the electrodes which remains constant in its polarity throughout the process (there are some variation on this theme, some LVDC generators switch polarity during the process, at various rates, in order to restrict build up of silver on the cathode). DC generators are cheap to build and operate, pose no electrical risk, and are generally portable, often able to run on both batteries and AC power (via adaptor) DC generation requires some attention to detail, but does produce very good CS, equal to the best both in efficacy and stability. AC generation also uses two electrodes, one being electrically neutral, the other being supplied with a potential which alters in polarity (with respect to the neutral electrode) in the manner of a sine wave. Therefore during the passing of each wave or cycle, the 'hot' electrode is at the same potential as the neutral electrode and no power flows, the potential then rises to a peak positive value and then falls to zero and continues to fall to a peak negative value to finally rise again to zero. The number of times this happens in one second is the frequency of the supplied power and can range from 50 or 60 cycles per second (Hz) to ten of thousands. AC generators generally operate at very high voltages, up to 10 or 15,000 Volts, and require expensive components, are not portable, cannot run on batteries, and cannot be built by the ordinary person. HVAC proponents suggest that the particle size and stability of their product is better than that produced by LVDC machines. That may be true in some cases, but well made LVDC CS is a match for the AC product in my experience. It is this 'competition' which prompts many of us to specify which method of generation was used in creating the CS we are referring to. Regard - Ivan -- 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] List maintainer: Mike Devour <[email protected]>
