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.
314
RADIO BROADCAST ADVERTISER
Navy Model lAr
Super Heterodyne
The supreme achievement in receiver design, setting a new high standard of efficiency not even contemplated here^ tofbre.
A High Powered Receiver employing 10 tubes
Simple tuning Compact (sizeonly 28x8x8) Wave length range 50-600 meters
Selectivity far in advance
of others Total amplification almost
2,000)000 times Perfect tone reproduction
and volume
In actual tests the O10 completely outclasses any other receiver in all respects.
Illustrated descriptive matter gladly mailed upon request. Write direct to
NORDEN-HAUCK, Inc.
Engineers
Offices and Laboratories:
1617 Chestnut Street, Philadelphia, Pa.
Get this great new
MAP of THE AIE
A MARVELOUS new way to chart your radio exploits — beautiful Air Map, printed in three colors, with every statio clearly marked and Time zones outlined! Size 28 x 34 inche;
There's no limit to the useful and amusing ways you ca use Collier's new Radio Map of the U. S. and Canada. Wit its help —
You can find out INSTANTLY how far any station is
If you use a directional aerial, you can point the loop exact! toward the station you want to get. The map also outline the radio districts, and gives an alphabetical list of all station and their operators.
Thousands have already been sold. Get yours to-day! A your news-stand or radio dealer's, only twenty-five cents — c just mail a quarter to us.
P. F. COLLIER & SON COMPANY 254 Park Avenue, New York City, R. M. B. 3300
*k Tested and approved
by Radio Broadcast ^