Care to Watch How Your 'Phone Works ___ Here's Little Plant Which Shows Every Move a Message Makes While It Is Enroute ___ The Terre Haute Bell Telephone society has erected what may be termed a "miniature telephone plant," to be used in instruction plant and traffic employees. This equipment, which is comprised of subscribers' sets, arrestors, line relays, condensors, retardation coils, operators' head set, plugs, cords, etc., covers the entire telephone circuit of a No. 1 multiple switchboard, such as used in Terre Haute. Shows Whole Business. The use of this apparatus has proved invaluable for instructing employees and demonstrating to subscribers. Plant employees are taught the necessity of each part of the equipment, and the operation in conjunction with other parts. The apparatus is more especially used in the lecture course in which the different parts of the switchboard are studied. Operators are taught as to the lamps, signals, and subscribers' sets. Subscribers are shown the working of the apparatus such as "busy signals," party line ringing, protection, and numerous other things which can be better demonstrated by the use of the apparatus than the regular switchboard.
