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RADIO BROADCAST ADVERTISER
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No extra batteries needed
Complete, with connecting cord
• 00
$25
Model in Antique Bronze
HE highest standard of music reproduction, the phonograph, now equalled by the O'NEIL AUDIPHONE. Designed and built on phonograph principles by phonograph craftsmen and radio acoustic engineers. A radical improvement over the old earphone type of loud speaker. The entire voice or instrument is transmitted through the "laminated voice core/' Diaphragm adjusted by exterior thumb screw.
Absolute "money-back-ifnot-satisfied'> guarantee on every O'Neil Audiphone. Should your dealer have none on hand, order direct, C. O. D., mentioning your dealer's name. Write for booklet.
Note the similarity of construction between the phonograph reproducer (illustrated in the upper panel) and the reproducer of the O'Neil AUDIPHONE (below) : both have a mica diaphragm set in a sound-box chamber and actuated by an elbow stylus bar.
O'Neil MfgXa
715 PALISADE AVE. West New York, New Jersey
The Voice
of the Callophone
— rich, clear, natural — faithfully reproducing the true voice of the artist. Any undertone or metallic vibration is quickly cleared by a turn of the dial controlling the diaphragm— an important feature, because of the varying strength of different sets. No batteries required.
Although little is generally known of the " Radio" Callophone— Callophone loud talking commercial equipment has been recognized for years as the best procurable.
The price of the Callophone is $35.00, delivered. Send for one to-day — if it does not prove entirely satisfactory, return it within ten days and your money will be refunded.
"None Can Compare"
CALLOPHONE COMPANY OF NEW YORK, INC.
216-222 Mercer St., New York, N. Y.
^ Tested and approved by Radio Broadcast ^