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Practical tests have shown this to be the most economical of "B" Batteries
In Daily use in the home, Eveready Layerbilt "B" Battery No. 486 has fulfilled the promises made for it in laboratory tests. More than a year's study of the performance of this battery in the hands of the public has shown that it is the most satisfactory and most economical "B" battery ever developed. All loudspeaker sets require Heavy-Duty batteries— and the Layerbilt has proved itself absolutely the best of them all
If you are now using the smaller, Light-Duty batteries, the Eveready Layerbilts will give you twice the service though they do not cost anything like twice as much. If you are already using Heavy-Duties, the Layerbilt, the longest lasting Heavy-Duty ever built, will run your set at least 25 % longer, and again you will save money. Unless Eveready Layerbilts now are
connected to your set, you spend more on "B" batteries than you should, and you can have no idea how good a "B" battery can be. The Layerbilt holds a surprise in store for you.
Eveready Layerbilt's unequaled service is due to its unique construction. All other dry cell "B" batteries are made of cylindrical cells, with many soldered connections, and a great deal of space is wasted between the cells. The Layerbilt is built up of layers of fiat current-producing elements, that make connection with each other automatically, and that fill all available space inside the battery case. It is every inch a battery. In it you get more active materials than in any other battery and the Layerbilt construction makes those materials much more efficient current producers.
Those are the convincing reasons why
the Eveready Layerbilt has proved itself the longest lasting, most economical and reliable "B" battery ever built.
Just remember this about "B" batteries— Heavy-Duty batteries are more economical than the smaller LightDuty batteries on all loud-speaker sets, and the patented exclusive Eveready Layerbilt No. 486 is the most economic cal of all.
Manufactured and guaranteed by
NATIONAL CARBON CO., Inc.
New York San Francisco
Canadian National Carbon Co., Limited Toronto, Ontario
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