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£88
RADIO BROADCAST ADVERTISER
*
EASTERN Pickle Bottle Coils are creating a sensation in New York for the Radio Broadcast Roberts Circuit! They have the highest inductance of any low loss coils, which guarantees greatest volume and distance reception, and their perfect design assures maximum sensitivity, selectivity and finest tone quality. Endorsed by RADIO BROADCAST.
Hook-up and full size panel layout with material arrangement FREE with each set of coils. Easy to follow. $8.50 per set.
Also designed for perfect performance in the DX Superdyne, ($8.00 per set), Three Circuit ($6.00), and for tuned R. F. for .0005 or .00035 condensers ($2.00 per coil).
At your dealers or direct, postpaid.
EASTERN COIL CORPORATION
22 Warren Street Dept. R.B. New York
COILS
Have you met
toajoi* Tuner
REG. U.S. PAT. OFFICE
MAJOR TUNER will end those "interference blues." A set built with the MAJOR TUNER gets only one station at a time — the one you want to get and no other. MAJOR TUNER is the most advanced form of three circuit Low -Loss tuner. It is packed with complete picture wiring diagrams and full instructions.
(If your dealer cannot supply you, write us) m
BEL-TONE RADIO CO. *4
161 Jamaica Ave., Brooklyn, N. Y.
LOUD SPEAKING
.FACTORY GUARANTEE!?
FOR testimony j SPECIAL OFFER. AGENTS I MIDWEST RADIO CORP'N
DEALERS 1 Pioneer Builders of Sets
write | 406-Y.E. 8th St., Cincinnati, O.
The FRENCH BINDERS
Good books with artistic binding COUNTRY LIFE PRESS GARDEN CITY, N.Y.
EL UEBIRD Radio Tubes
Distinctly New and Efficient.
A quality tube at a moderate price, made possible by our direct sales plan. "Bluebird" is sensitive and powerful — produces clear volume.
BAKELITE BASE
Type 200 5 Volts, 1 Ampere Detector Tube.
Type 201A 5 Volts, .25 Ampere Amplifier and
Detector.
Type 199 3-4 Volts, .OS Ampere Amplifier and
Detector.
Type 199A } 4 Volts, .06 Ampere With Standard
Base.
Type 12 \% Volts, .25 Ampere Platinum
Filament. Amplifier and Detector C g\ AfJ All Standard Types— «P / uu
Type 202, 5 Watt Transmitter S3 M*
ALL TUBES GUARANTEED
to work in Radio Frequency. Especially adapted for Neutrodyne, Reflex, and Super-Heterodyne Sets. When, Ordering Mention Type.
BLUEBIRD TUBE CO.
200 Broadway Dept. B New York City
^Sr Tested and approved by Radio Broadcast