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RADIO BROADCAST ADVERTISER
The f fA" Battery's Power in Your it Radio Receiving Set
THIS IS NUMBER TWO OF A SERIES
THE sole purpose of the "A" Battery in your Radio Receiving Set is to furnish current to heat the filaments of the tubes.
And this can be done satisfactorily only by an ' 'A" Battery that supplies an adequate steady current.
Anticipating the popularity of the dry cell tube in Radio, and realizing that it required a Dry Cell capable of standing up under service conditions differing from what dry cells are called upon to meet in other fields, the National Carbon Company developed the Eveready Radio Dry Cell specifically for this new use.
A dry cell gives its maximum service only when designed especially for the work it is intended to perform. There are for dry cells several uses which are so alike that one type of cell serves for all. This is the field covered by the ignition or general purpose dry cell.
The conditions encountered in Radio are different from the conditions grouped together under the term " general purpose." And while the general purpose dry cell performs well as an "A" Battery, it was found possible to produce a Dry Cell "A" Battery capable of delivering more service on Radio loads.
Thirty years of dry cell experience and an immense research organization resulted in the superior Eveready Radio Dry Cell. One of the outstanding features of this special cell is that while it will last much longer when used as an " A " Battery, it is no larger than the standard dry cell.
The increased service life of the Eveready Dry Cell "A" Battery greatly offsets the slight increase in cost; so this battery is not only the best, but it is the most economical you can buy. "The Story of Eveready Dry Cell Radio 'A' Batteries," which tells how to use Dry Cells to the greatest advantage with the various dry cell tubes now available,will be sent to you free on request.
* * * *
The "A" Battery gives power to your Radio Receiving Set. Eveready Batteries — especially made for Radio — serve better, last longer, give better results.
Note: This is number 2 of a series of informative advertisements which will appear in this magazine. They are designed to help users get the most out of their Batteries and their Radio Sets. If you have any battery problem, write to G. C. Furness, Manager Radio Division, National Carbon Company, Inc., 126 Thompson Ave., Long Island City, N. Y.
POWER
for Your Radio Set
Eveready Dry Cell Radio "A" Battery (No. 7111)
Directions and wiring on the jacket tell just how to use this battery with the different drycell tubes.
This special Radio Cell is also available in two and four cell multiple batteries for receiving sets employing from two to four WD11 or WD12 tubes.
Other Radio Batteries
Eveready Storage "A" Batteries — best suited for filament heating of all Radio Tubes not especially designed for dry cells. The quality storage battery with the long life plates, $15 to $20.
Eveready "B" Batteries — the life of your Radio.
Eveready "Three" Battery— 3 cells, 3 purposes. ^Manufactured and guaranteed by
NATIONAL CARBON COMPANY, Inc.
EVEREADY
Radio Batteries
'-they last longer
it Tested and approved by Radio Broadcast