Radio Broadcast - 1925, February - 113 Pages ... - VacuumTubeEra

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 knc K 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 XL- 5
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