Papers: In the Carl Stokes Papers, 1957-1972, 104.51 linear feet. The papers include material relating to Carl Stokes's brother, Louis Stokes. Exhibit: A virtual exhibit titled, Carl & Louis Stokes: From the Projects to Politics,: http://www.stokescleveland.org/.
Learn what solder is from expert Jeff Koskulics in this Howcast video. Solder is a material that is used to join soft metals, such as copper, gold, and silver. In electronics weâre mostly concerned with copper. Most commonly weâre using eutectic solder, which is a combination of tin and lead. This is eutectic solder, this is 63 percent tin, 37 percent lead, and this is made with a formulation that has a very minimum melting point for this combination of metals. The melting point is somewhere 360 degrees Fahrenheit.
1 Soldering is used to form a permanent connection between electronic components. 2  The metal to be soldered is heated with a soldering iron and then solder is melted into the connection. 3  Only the solder melts, not the parts that are being soldered. This is called tinning and it will help the heat flow from the iron's tip to the joint. 2  The solder should flow onto the tip, producing a bright shiny surface. 3  If the solder will not flow onto the tip, clean it by wiping it on the wet sponge. 4  When tinned, wipe excess solder off on the wet sponge.