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 Use solder that has a rosin core. 2  For most electronics work, a solder with a diameter of 0.75 millimeters (mm) to 1.0 mm is best. 3  Thicker solder might make soldering small joints difficult and also increases the chances of creating solder bridges between copper pads that are not meant to be connected. 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.