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RADIO BROADCAST ADVERTISER
261
A new line of
COIL UNITS
USING
HEXCELL COILS
Complete set of coils for Roberts circuit, List Price §6.
List Price
3 circuit HEXCELL tuner 200-575 meters $3.00
Complete set of HEXCELL coils for Roberts circuit 6.00
Complete set of HEXCELL coils for Browning-Drake circuit with new improvements 6.00
Short wave HEXCELL extra low loss 3 circuit tuner 40-115 meters 3.50
We have put real electrical and mechanical engineering into our inductances. Particular attention is given to efficient operation at the lower end of the Broadcast Wave Band.
Our coils are finished in beautiful silk shades, each coil having a different color. Highly polished bakelite and nickel mounting parts used. Merchandise packed in attractive boxes.
A live line for live dealers Liberal jobber and dealer discounts Write for information
EASTERN ELECTRIC 8C MANUFACTURING COMPANY
Providence, Rhode Island
Licensed manufactures of Zig-Zag Coils
RADIO BROADCAST
For January
will be a better magazine than this. Make sure of it by telling your newsdealer to hold one for you — or better still, subscribe through him or direct.
RADIO BROADCAST
Garden City New York
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Affording a plug and socket connection between the radio set and all outside connections, Jones MultiPlug is as essential to the radio as a cord and socket to the electric iron. For safety and convenience, leading set manufacturers have adopted this item as standard equipment. You, too, need a Multi-Plug for the set you are building or the set you now have. See your dealer or write direct for descriptive folder F.
TYPE BM— For Set Building— $4.50 TYPE BP— Adaptable to any set— $5.00
HOWARD B.
614-18 S. Canal St.
JONES
Chicago, III.
MULT* PLUG
THE STANDARD (fSET CONNECTOR
This is a good time to subscribe for
RADIO BROADCAST
Through your dealer or direct, by the year only $4.00
Doubleday, Page & Company
Garden City, New York
For: VV199 and 201 A Tubes and all similar types
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Old Tubes Made
Good As New
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THIS latest Laboratory product will recondition any old, run-down, even worthless tubes, as long as the filament still lights. Makes them as good as new in a few minutes' time. Costs but few cents more than new tubes! Simple, efficient, practical, and a big money-saver. Operates on either A. C. or D. C. — 110-120 Volts. Bound to do the work on our
Money-Back Guarantee
Money cheerfully refunded if desired results fail. But we are sure you will find the Mack Reconditioner pays for itself in one evening-. Many making good money restoring friends' and neighbors" old tubes. You cannot lose! Act quick on this special short -time introductory price. Sent postpaid with full directions on receipt of |3.65. Be sure to state if for 199 type or 201 type. Our guarantee refund price protects you. Send DOW.
MACK LABORATORIES
716 Cass St.
Chicago, III.
econditioneB
"THE CURE FOR RUN-DOWN TUBES"
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•jt Tested and approved by Radio Broadcast +