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RADIO BROADCAST ADVERTISER
Saw*
lfMM LOUD SPEAKER
You can't tell the KODEL MICROPHONE LOUD SPEAKER from the microphone the broadcasting stations use — they are exactly alike in size and appearance. The efficient Kodel Sound Unit, with an ingenious new snail shell horn, mounted inside the microphone case, produces a remarkably clear, full-toned volume. Nonvibrating tone chamber eliminates distortion.
$15 model incorporates Kodel, Jr. unit; equipped with large Kodel unit $20
ber eliminates dist
Radio dealers every' where have them.
THE KODEL RADIO CORP. 505 E. Pearl St., Cincinnati, O.
RECEIVERS :: SPEAKERS HOMCHARGERS
Owners of Kodel Broadcasting Station WKRC. Send for program
Make your set a Super-Het
The circuit described in Radio Broadcast for June and August will change any set into a super-heterodyne. It is particularly applicable to five tube neutrodyne and tuned RF sets. It changes these two circuits into super-heterodynes as good as most, and considerably better in some respects than any super-heterodyne circuit ever devised.
Stations come in at but one point on the oscillator dial. There is mathematically no possibility of harmonics. Full scale blue-prints with reprint of article $1.00.
Eastern Coil antenna coupler $6.00 O'Connor oscillator coupler . . 6.00 Special fixed condenser ... .60 Complete parts including panel drilled and engraved, special
★ formica bushings, screws, and wire, blue prints and reprint 37.50
A. O'CONNOR & COMPANY
SUPER-HETERODYNE HEADQUARTERS SINCE 1923 9702 Euclid Avenue, Cleveland, Ohio
A REMARKABLE LOOP
Exceptionally Directional Increases Volume
Users of the "ERIE" Loop say it is the most efficient Loop they have used.
If your Dealer cannot supply you, enclose Money Order for $9.00 and we will make immediate shipment. Attractive proposition for Radio Dealers.
ERIE RADIO COMPANY
Incorporated 23 East 8th St, Erie, Pa.
FOR
Endorsed by RADIO BROADCAST Price $&52 per set ^
VICTOR RADIO CO. 2915 Lehigh Ave., Philadelphia, Pa.
Distributed by Franklin Electric Co,, 50 No 7th St., Philadelphia, Pa. Pacific Radio Specialty Co. ,17 S, Orianna St„ Philadelphia, Pa.
Correspondence invited from distributors
■jt Tested and approved
by Radio Broadcast