Radio broadcast .. (1922-30)

Record Details:

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New Equipment DE FOREST LOUD SPEAKER A reproducer of good design and quality which compares very favorably with other speakers of the same price range. It delivers good volume on both speech and music, still maintaining good tone quality. Made by the De Forest Radio Company, Jersey City, New Jersey. Price $25 ANTENNAPHONE A very neat indoor aerial. It is only necessary to place your house telephone upon the antennaphone plate and connect the lead to the antenna binding post of your receiver. Made by The Antennaphone Co., 90 West Street, New York City. Price $1.00 NATIONAL BATTERY This is a 24-volt unit wet B battery of good construction. The connectors between the several cells protrude above the sealing so that it is possible to tap off at any desired voltage. Made by the National Lead Battery Company, 1704 Roblyn Ave., St. Paul, Minn. u. L. CONDENSER A well made instrument which has a good capacity range. The vernier action, which shows at the back of the condenser, is controlled by the small kncK acting through the center of the main dial. Made by The Jnited Scientific Laboratories, Inc., 92 East 10th Street, New York City THE A-C DAYTON XL5 A five-tube set using tuned radio-frequency, detector and audio-frequency amplification. The radio-frequency transformers are of special design. Very satisfactory performance is possible with this receiver. Made by The A-C Electrical Mfg. Co., Dayton, Ohio. Price $115 PERFECTO SOLDERING FLUID— A convenient and satisfactory, non-acid soldering flux that insures positive soldered joints. John Firth & Co., 25 Beaver St., New York City