The main factor in my case is that I bought a silver ingot to use for the anode. Why buy two if it makes no difference? Why go to the trouble of cutting it up to make two, or melting it and casting two? If you are going for a fancy-shmancy setup with switching polarity, then, of course both have to be silver. ----- "We cannot walk alone. And as we walk, we must make the pledge that we shall march ahead. We cannot turn back." --Martin Luther King Jr (1929-1968) ------ Mark S. Siepak
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