Marshall- That is really great information.
I was told that I required 'bigger' electrodes and not smaller ones.?? Now that I think about it all HVAC systems do seem to have skinny tiny bits of electrodes sticking out of glass tubes just as you describe it. I am not sure what the voltage I am using is but it is somewhere between 3 and 6,000 volts DC. My max amp draw was 3 to 400ma using 14 guage wires submerged about 5 inches each. and yes, things do heat up in hurry that is for sure. I will have to run some more tests again now but this time exposing only a tiny bit of the electrodes as you suggest. A good weekend project. many thanks On Fri, Jul 31, 2009 at 11:36 PM, Marshall Dudley <mdud...@king-cart.com>wrote: > For the high voltage generation of CS, you use very small electrodes, not > large ones. You use large ones for low voltage CS. The trick it to get the > high density of silver ions away from the electrode before they can > aggregate sufficiently. For low voltage that is done by Browning movement > and stirring, thus the very limited 1 mA per square inch. For high voltage > systems, you want a huge gradient near the electrode, so that the ions are > sucked away from the electrode by the electric field. I am not sure what > size you would want for 500 volts, but for 10,000 volts I found that the > electrodes should be about .03 square inch each. With the system I was > using with 100 mA of current, that gave a density of about 3 amps per square > inch. I am not sure 450 volts is enough to provide the necessary gradient > to prevent larger particle size. The way I kept the electrode that small > was to feed some 14 gauge silver wire into glass tubes, and only allow about > 1/8 inch to protrude from the end under the water. Then I mounted it so > that the tip of the two electrodes were about 1 inch apart. You may find > that keeping it cool is a problem because of the high power. > > Marshall > > Pierre Genton wrote: > >> Thanks for the warning about the cap. I made sure I discharged that >> before going into the electronics too far. >> >> Yes, I heard that the microwave electronics produced pulsed DC. >> At this stage I am looking for evidence of the system being able to >> produce small enough particles before I have a large electrode fabricated >> just for the purpose. Just seems I couldn't make a big enough electrode >> practically to be able to make small particles but I don't really know. >> >> Boy sure would be good to make a fine quality CS this way since it is so >> fast at a quart under 2 minutes . However safety and quality are the main >> requirements for any system and product. >> >> Thanks for the tips and any other comments on this or other systems are >> welcomed. >> >> On Fri, Jul 31, 2009 at 4:23 PM, Ode Coyote <odecoy...@windstream.net<mailto: >> odecoy...@windstream.net>> wrote: >> >> >> >> A microwave magnetron runs on HVDC and the box has a power level >> function to pulse it. >> Watch that cap! [ZAP] >> >> Ode >> >> >> At 11:46 AM 7/30/2009 -0400, you wrote: >> >> Using microwave parts is extremely dangerous. The voltages >> are high, the capacitances big, and currents unlimited. There >> has been some discussion of using microwave transformers, but >> I thought those were for HVAC not HVDC. I see no way to >> produce small particle CS using high voltage DC as the >> currents would be way over the optimum of 1 mA/in^2 >> >> Marshall >> >> Pierre Genton wrote: >> >> Hi- >> >> I am new to the group here. I was referred to this list >> by a fellow who says there was some experience here >> amongst your ranks using microwave transformers and >> capacitors etc to make CS using high voltage DC. >> I wanted to go to the archives to have a look around but >> that section is not functioning at the moment and so I >> thought I'd just ask the group instead. >> I have been using low dc Volt system for making a fine >> quality CS for 5 years already. Because of demand from >> family and friends I need to increase my production. >> >> I found some instructions on the internet from a kind >> fellow on how to connect the microwave components together >> to create such a system but not much more details then >> that unfortunately. I tried it and the initial results >> are encouraging. I only have a TDS meter on hand and so am >> not really sure about the quality of the product. Also I >> only had wire type of electrodes and did not have the >> wider pieces of silver and so I fear I am making too large >> of particles. >> >> Has anybody here used this type of system and if so have >> they had their product analyzed for true ppm, particle >> size and % of ionic/colloid content etc. ? >> >> any information on this will be appreciated. >> >> best regards, >> >> PG50 >> >> >> >> >> -- >> 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: silver-list@eskimo.com >> <mailto:silver-list@eskimo.com> >> >> Address Off-Topic messages to: >> silver-off-topic-l...@eskimo.com >> <mailto:silver-off-topic-l...@eskimo.com> >> >> The Silver List and Off Topic List archives are currently down... >> >> List maintainer: Mike Devour <mdev...@eskimo.com >> <mailto:mdev...@eskimo.com>> >> >> >> >> > >
