Making Aerial Joins

Radio Record, Volume V, Issue 25, 31 December 1931, Page 15

Making Aerial Joins

T is sometimes necessary to make a joint in the aerial wire, either because the latter has broken, or perhaps, more frequently, in order to extend the length of the aerial. This latter requirement often crops up when temporary aerials are slung between trees for out-of-doors radio working. The following will suggest a very ready method of effecting an. efficient joint in a length of aerial wire. A short length (up to six inches) of narrow bore copper or lead tubing is necessary. A portion of the casing of a length of lead-covered wire makes an excellent article for this job. Lay the ends of the aerial wires to be join-

ed parallel with each other and slip the short length of copper or lead tubing over them. Flatten the tube, and then, by means of a pair of pliers, twist both ends of the tube a few, times. The resulting joint will be mechanically strong and electrically efficient. Indeed, if the ends of the twisted tuba are carefully stopped up with Chatters ton’s compound, or some similar sube stance, in order to prevent the access of air and moisture, the joint, will be to all intents and purposes quite ‘pers manent in its efficiency.