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RADIO BROADCAST ADVERTISER
Radio Broadcast's "Universal" Receiver
will be described by Arthur H. Lynch in January.
This Receiver employs five tubes, tuned Radio Frequency with Rice method of neutralization, Regenerative Detector with Fixed Tickler with Resistance Control and an exceptionally high quality Audio Channel.
TRANSFORMERS & CHOKES
Share in Big Demand
for New B-Eliminators
Are you one of those radio lovers who have waited patiently for a perfected B-Eliminator? Because the new type Filament and Non-Filament Tubes have definitely answered the problem. With these tubes you can build a perfected B-Eliminator that improves your radio enjoyment more than you have thought possible.
Dongan Transformers and Chokes are important parts in the construction of these remarkable new B-Eliminators.
TRANSFORMERS
No. 509 Full wave For Raytheon Tubes
No. 537 Full wave For R. C. A. UX 213 Tubes No. 537 Full wave For Cunningham CX 313 Tubes No. 538 Half wave For R. C. A. UX 216-B Tubes No. 538 Half wave For Cunningham CX 316-B Tubes LIST $7.00
CHOKES
No. 514 20 henry
No. 506 30 henry LIST $5.00
No. 539 50 henry Instructions on building your own B-FJiminator sent free on request. Dongan quality radio products at most dealers. Money orders filled promptly.
Set Manufacturers — Dongan Audio Transformers are the accepted standard among Set Manufacturers. For quality products and a fair price you cannot equal Dongan Audio Transformers. Quotations on request.
DONGAN ELECTRIC MANUFACTURING CO.
2991 Franklin Street Detroit, Mich.
Transformers of Merit for 15 Years
RADIO FANS, a one-year's subscription to Radio Broadcast will cost you four dollars, two years six dollars. Consider this expenditure as being a necessary investment on your part for the future development of your own knowledge of Radio.
~~ K0RACH tluonoepd
Multiple Switch Board Tuner
Directional. Base Compass for LoggingG Collapsible,
For Those Who Demand
Superior Results
Leads the march toward perfect radio reception under all conditions. Not merely a "loop" but an' ingenious arrangement of mechanical skill designed for superior results. L. M. Cockaday, using this loop, reached out across the Atlantic to hear many trans-continental Stations.
Selectivity Plus Distance
unheard of with common loop aerials. The Korach excels on all sets designed for loop reception. Priced at $16.50 and for sale by all good dealers, l'ull particulars sent for 8c stamp and name of local dealer.
KORACH RADIO CO.
20 E. Jackson Blvd. Dept. 8 Chicago, 111.
Dealers and Jobbers: Write to-day for attractive proposition.
The
KORACH JUNIOR
A modification of the "Senior" but possessing all its Important features — $12.50.
if Tested and approved by Radio Broadcast Jr