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New Equipment
RED SEAL PHONOGRAPH
ATTACHMENT
Consisting of a special Red Seal receiver attached to a heavy non-resonant metal base with diaphragm especially designed to operate the large air column of a reproducing horn. It is very sensitive to weak signals and reproduces with fidelity. Made by the Manhattan Electrical Supply Co., Inc., 17 Park Place, New York City. Price, $5
PYREX INSULATOR An efficient antenna insulator of high mechanical strength. This insulator is reasonably light in weight and is impervious to weather. Made by the Corning Glass Works, Corning, New York. Price, 45 cents each
RADIOLAMP
A novel loud speaker which will add to the appearance of your radio corner. The loud speaker unit is located at the base. The signals travel up through the cast shaft and are reflected by the parchment shade. This gives a very mellow reproduction of the received sound. Made by the Radiolamp Mfg. Co., Newark, N. J. Price, $35
APCO BATTERY CHARGER
A newcomer among vibrating rectifiers and one which gives fine service. The noise from the vibrating arm has been pleasantly minimized. It maintains an even charging rate and its current consumption is not great. Made by the Apco Manufacturing Company, Providence, R. I.
SONORA LOUD SPEAKER
A neat appearing and well made instrument employing the wooden sound chamber which has been found so satisfactory in the phonograph. The tone quality and volume are very fine. Made by the Sonora Phonograph Co., 279 Broadway, New York
THE
DERESNADYNE RECEIVER Employing two stages of tuned radio-frequency amplification, detector, and two stages of audiofrequency amplification. Designed for broadcast reception, this receiver will give good loud speaker volume over fairly long distances. Made by Andrews Radio Company, 506 Webster Bldg., Chicago, III.