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EDISON PHONOGRAPH MONTHLY, OCTOBER, 1916
44
Repeating " and How to Correct It
AMONG the many reasons for the increasing sales of the Diamond Amberola must be counted its comparative freedom from mechanical troubles. It is dependable and its owners are praising this feature to their friends. In the thousands of reports received by us from Amberola owners, the usual comment is, "Never out of order," or else we read, "Dealer can make any adjustments required." Simplicity is the keynote of success in designing machinery. Efficiency depends upon simplicity; in fact, efficiency means doing the right thing the simplest way. The right and efficient way to become familiar with the mechanism of the Amberola or to locate any mechanical difficulties that may result from improper handling or lack of attention is to examine one part at a time.
It is very simple to make mechanical adjustments on the Amberola if you seek the seat of trouble systematically and do not become confused and spread your attention over the entire instrument at one time. If an Amberola that is out of adjustment is brought to your attention, examine it as an expert repairman would. Take one part at a time and go over it thoroughly. If the first part you examine is in good condition, go to the next part and, by this process of elimination, you are bound at last to
find where the trouble lies. Suppose, for instance, that a customer complains of an instrument "repeating." Possibly it has been moved about carelessly or some part is in need of the ordinary attention which all machinery requires.
The few simple suggestions below, prepared by the mechanical department of the Musical Phonograph Division, show how an examination for the cause of "repeating" should be made and how the difficulty should be removed when the cause of it is located. See cut accompanying this article.
1. — It may be that the owner has the habit of letting the diamond point down upon the smooth outer border of the record where it can float to the right or left before catching the music lines. This will permit the limit pin (1) on the free end of the reproducer weight to rub against the loop surrounding it, thereby causing the diamond to jump a line or two.
2. — In moving the instrument, it sometimes occurs that the small end of the horn slips away from the stem on the reproducer. Unless the end of the horn is pushed back against the shoulder (2) of the reproducer where it belongs, it may work at an angle and cause a slight bind in the joint — a bind that will cause the feed screw nut to skip on the