Tap water. Table salt. My kitchen stove is gas, so bought small oneburner electric hotplate for about 25. sheet of copper flashing from the hardware store. The little watt burners probably wont work mine is watts, so the burner gets red hot. Two alligator clip leads. Sand paper or wire brush on an electric drill. sensitive microammeter that can read currents between and microamperes. large clear plastic bottle off of which you can cut the top. An electric stove. Sheet metal shears for cutting the copper sheet..
Tap water. Two alligator clip leads. The little watt burners probably wont work mine is watts, so the burner gets red hot. This normally costs about 5. 00 per square foot. Sheet metal shears for cutting the copper sheet.. Radio Shack sells small LCD multimeters that will do, but used small surplus meter with needle. sensitive microammeter that can read currents between and microamperes. An electric stove. My kitchen stove is gas, so bought small oneburner electric hotplate for about 25. sheet of copper flashing from the hardware store. used liter spring water bottle. Table salt.
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