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.RADIO BROADCAST ADVERTISER.
LAYING THE CORNERSTONE OF QUALITY
Polymet condensers and resistances for Radio and Television are carefully made, carefully tested, and accurately rated — is it any wonder they are the choice of 2/3 of the R. C. A. licensed man uf ac t ure rs ?
Send for the Polymet Catalogue
POLYMET MANUFACTURING CORP. 597 Broadway New York City
POLYMET PRODUCTS
The Big Green Book gives the very latest detailson Aero Coils and Kits, Short Wave Radio, newest broadcast radio receivers, short waveconverters, telephone transmitters, coil kits, adaptersand a host of new wrinkles for 1929.
24 Different New Kits Shown for 1929
The kits everyone is talking about are lully described in the new 1929 Aero Green Book — Aero 7-29, Aerodyne6-29, Chronophase, Metropolitan, Trio, International, Standard, Radiophone— in Shield Grid, A.C. and D.C. models. Be sure to send lor your copy of this 25c Big Green Book — worth$25.00to anyone who wants to keep up with the latest radio wrinkles. Mail coupon for your copy today — NOW!
^pTS INCORPORATED
4611 E. Ravenswood Ave., Dept. zzq CHICAGO, ILL.
— — — — — — — MAIL THIS COUPON NOW
AERO PRODUCTS, INC. Dept. 229
4611 E. Ravenswood Ave.. Chicago. III.
Send me your Big Aero Green Book, 25c, giving the latestinformationon What's Newin radio, short wave, etc.
Name
St. and No.
.City State
Aero Short Wave Gets Everything in the Air
England Every dayAustralia on Thursdays— Holland on Fridays
You Can Forget th e Condensers — If They Are D UBILIERS'
Specially designed for Thordarson Power Packs Type 574 for use with the Ratheon BH tubes or the Elkon Metallic EBH rectifier.
Type 575 for use with 210 type tubes and 281 rectifier tubes.
Type 1152 for use with 210 and 250 type tubes and 281 rectifier tubes. Type 1120 for use with 280 type rectifier tubes or the Elkon E-80 metallic rectifier.
There
is
No Substitute for Quality!
No amount of lurid claims by nimble-penned advertising writers will take the place of quality in the final analysis — the operation in your power supply.
Ever since the advent of Radio, Dubilier has been the manufacturers' standard — and the set builders' stand-by. Built in every Dubilier Condenser is a factor of safety which is your safeguard for years of service without failure.
DUBILIER LIGHT SOCKET AERIAL
— "A Moulded Bakelite Product"
Bring in programs with a minimum of interference. Do away with the unsightly and trouble causing outside aerial and lightning arrestor. Simply attach to the set and plug into the nearest light socket. Uses no current. Sold by all good dealers. Price $1.50.
Dubilier
CONDENSER CORPORATION
10 East 43rd Street, New York City
Address Dept.
for free catalog
Reg o
S Pat Off.
SET BUILDERS
write (or
Discount Card
Enabling you to purchase the new and 1
► Improved Knapp "A" Power Kit at big *
► discount — Write for full particulars.
► DAVID W. KNAPP, Pres. Knapp Electric, Inc.
Division of P. R. Mallory & Co. Inc. Room 4I4B, 350 Madison Ave., N. Y. C
NEWS'* Set Builders
Barawik offers set builders bigger]
bargains — bigger opportunities to make money this season. New sets, new kit ideas, all the leading parts, dynamic speakers, supplies, etc. Lowest rockbottom prices. Bigger stocks, quicker service. Send for Big Bargain Book today— free.
BARAWIK CO., CHICAGO. U. S. A.
RADIO CONVENIENCE OUTLETS
CABLE CONNECTOR PLUGS RHEOSTATS POTENTIOMETERS JACKS SWITCHES RESISTANCE UNITS
For greater convert ience in receiver operation and dependabil' ity in set construction make up your list of parts and accessories from the New Yaxley Catalog. FREE. Send for it today.
YAXLEY MFG. CO.
Dept. B— 9 So. Clinton St., Chicago, III.
• february. 1929
pace 283 <•>