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46 MARINE REVIEW Tg TTT, Model E T- 3626, one typeof RCA tube trans- mitter. There’s only one make of Marine Radio Tube Transmitter —R CA! Five years ago steamship companies were satisfied with spark radio equipment. But then broadcast listeners were delight- ed with crystal sets. Five years have wrought gigantic devel- opments in marine radio apparatus. And they have proved RCA’s world-wide leadership in radio. Now RCA offers its tube transmitters the latest development in marine radio— and the only tube transmitters used by the American Merchant Marine. MARINE RADIO Address inquiries for further information to RADIO CORPORATION of AMERICA Marine Department 66 Broad St., New York City BALTIMORE NEW ORLEANS CLEVELAND WASHINGTON, D. C. NORFOLK, Va. SEATTLE CHICAGO PHILADELPHIA GALVESTON BOSTON SAN FRANCISCO HONOLULU, T. B. LOS ANGELES STANDARD Oil Engines 6-Cylinder reversing 135. H. P. Standard Oil Engine Full Diesel Airless Injection 4 cycle en- gines built for direct propulsion in three, four, and six cylinder engines with un- equalled starting effort, making possible the lowest first cost in Diesel engine in- stallations. VICTOR LYNN, 150’ Freighter, 370 tons 2—135 H. P. Standard Oil Engines The VICTOR LYNN is practical proof of the superiority of the Standard method and reasonable overhead with Diesel en- gine economy. The features which have given the Standard its admitted su- periority are found exclusively in the Standard Full Diesel Engine. Write for full information covering our Diesel Oil Engines Back of the Standard engines is the Standard Motor Construction Co. 176 Whiton St., Jersey City, N.J., U.S.A. Please mention MARINE REVIEW when writing to Advertisers October, 1925