We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
446
RADIO BROADCAST ADVERTISER
12-Cell-24-Volt Storage'B'Battery
Positively given free with each purchase of a WORLD "A" Storage Battery. You must send thi9 ad with your order. WORLD Batteries are famous for their guaranteed quality and service. Backed by years of successful manufacture and thousands of satisfied users. Equipped with Solid Rubber Case. an insurance against acid and leakage. You save 60 per cent and geta
2 • Year Guarantee Bond in Writing woRLDBat Approved
"tell then friends." That'Tour test^oof of performance. Send your order in today. Solid Rubber Case Radio Batteries
6-Volt, 100-Amperes $11.25
6-Volt, 120-Amperes . 13.25
6Volt, 140-Amperes 14.00
Ru5ber Case Auto Batteries
6Volt. 11-Plate $11.25
6Volt, 13-Plate * 13 25
12-Volt. 7-Plate . . . . . . . te.OO
tute of Standards, Popular Radio Laboratories, Radio Broadcast Labo . oratories JJadio
in full with order. Buy now and get a guar «r In j in % H°Pe anteed battery at 50 per cent saving to vou. andLefax, Inc
Se»* No Money f~££&!k
we will ship day order is received, by Express C. O.D., subject to your examination on arrival. FREE "B" Battery included. Extra Offer: 5 per cent discount for cash
and Listed as Standard by Leading Authorties
per cent saving to you. WORLD BATTERY COMPANY 1219 so. Wabash Ave., Dept. 24 Chicago, ill.
World
STORAGE BATTERIES RADIO
jftDftA^WEAF*' W6N *WJS-*KHJ>KGO* KFAf^VvUY^K^
"No library complete without Kipling complete
FOR GREATER DISTANCE, VOLUME AND CLARITY USE
X-L VARIO DENSERS
Endorsed and Used by the Foremost Radio Engineers of the Country
MODEL N — Capacity range 1.8 to 20 micro-micro'farads, as used in Radio Broadcast's Phonograph Receiver, for balance in Roberts two tube, Browning-Drake, McMurdo Silver's Knockout, Neutrodyne and tuned radio frequency circuits.
Price $1.00
MODEL G— Two capacity ranges, .00016 to .00055 and .0003 to .001'5 Microfarads, for the Cockaday circuits, filter and intermediate frequency tuning in super-heterodyne and positive grid bias in all sets. Price $1.50
X-L RADIO LABORATORIES 2426 Lincoln Ave. CHICAGO If your dealer cannot supply you write direct
jiiimiimmmmimnmiiiiiiiiiiiimimiiiiimiiiiiiiimitii iiiiiiiiiiiiiiiinuiiiniiiiiiiiiiinffiinuiic
( f HOST-RADIO I
Loop Aerial Plug and Jack
ANEW wrinkle that has been eagerly awaited — a plug and jack designed espe« cially for loop use. Has sturdy jack, fitted with nickeled flush plateand plug for tak« ing loop. List price, complete, $1.50.
M e M B £ B,
I HERBERT E FROST, Inc. I
I 314-324 WEST SUPERIOR STREET. CHICAGO 1
= NEW YORK CITY CLEVELAND KANSAS CITY LOS ANGELES § ^IIIUIIUIIMIIIIIIHIIIIllMlinilllllllMUIIIIIIIIIIIIIlllllltilllllUllllinilillMlillllllllllllllllllllllllllllllllini
The Perfect Reproducer
Tone loud and pleasing Handsome material and design
Black— $22.50 Shell— $25.00
AMERICAN ELECTRIC State & 64th Sts. .
COMPANY Chicago
if Laboratory
Distortionless Simplification,
12,000, 48,000, 50,000, 100,000 Ohms. List SI. 50 each. Special Sizes to Order $2.50 each. Dealers write for discounts. When Better Resistances are made they will be Crescents.
1-3 Liberty St., Jamaica, N. Y.
Crescent Radio Supply Co.
CONDENSERS
For Real Radio Reception
Write for Literature HEATH RADIO & ELECTRIC MFG. CO. 206 First St., Newark, N. J.
Wmm for joining
radio antenna and lead-in wires in one rninute without solder, tape or tools. • , ,,!.;,
Many other uses. A million perfect joints have already been made with these new Wire -Nuts. Listed by Underwriters' Laboratories. Booklet free.
Ask your dealer for Wire-Nuts. We will send 3 Wire-Nuts post paid on receipt of 25c. B. TORK COMPANY, 8 W. 40 St., New York
FORMICA ★
RADIO PANELS
TUBES AND RODS
WRITE TO-DAY for your copy of our new catalog listing and pricing 3384 different sizes and kinds of Formica Radio Panels, 126 different sizes of Formica Tubes, and 21 different sizes of Formica Rods.
DRILLING— ENGRAVING
Lowest prices consistent with good work.
STARRETT MFG. CO. 521 S. Green St. Chicago, 111.
Tested and approved
by Radio Broadcast jr