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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by vk3pa[/i] [br]dc supplies.. Try a plastic bin (safest way) filled 3/4 full with water make a couple of electrodes copper tube ,connect ur power supply to the electrodes ..NOW [blue][i][b]slowerly add cooking salt to the water [/b][/i][/blue]es watch the amps build up.. by carefully adding salt u can see current limiting occuring it is even usefull at rf!! ,as a load, well hf frequency's.. I have seen 200 plus amps on a dc supply.. [red][i][b]"CAUTION"[/b][/i][/red] [blue][i][b]AS CURRENT INCREASES THEIR IS A CHANCE OF COPPER TRANSFERE IN THE WATER [/b][/i][/blue]This could cause a flash over.. If a metal container is used (- neg) to metal bin es the other to a copper rod which is isolated from the metal container, plating effect is also possible over the inside of the metal container!! [black][i][b]I have seen the water boiling which means bigger container es more water is needed [/b][/i][/black]hi.. [blue][i][b]TAKE CARE [/b][/i][/blue]in doing this!! [/quote]   Check here to include your profile signature.