Place the copper rod in the hole and solder with hard solder.
The wire was forced through these holes, and the wire and plugs were then soldered together with hard solder.
The different parts are united, some with soft and others with hard solder.
hard solder gives better results than half and half, but is more difficult to work.
The first is described again as hard solder, but it is not nearly so hard as the one previously described.
This being done, the barrels are bound together and brazed with hard solder or brass, for about four or five inches.