Radio Broadcast (May 1929-Apr 1930)

Record Details:

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. RADIO BROADCAST ADVERTISER -X" TUBE BRANDING MACHINES The Latest and Best Machine for Marking Tubes Impresses Neat Clean Letters Into Your Bases Designed and Built by GEO. T. SCHMIDT, Inc. 4100 Ravenswood Avenue Chicago, Illinois U. S. Patents No. 1,034,103 —1,034,104, and Pats. Pending BLASTI NG SPEAKER and OVERLOADING OF TUBES TONE Quality is Greatly Improved LYNCH TUBADAPTA Provides for the use of two tubes in parallel, thus reducing the impedance in the power stage. The plate current is almost doubled without making any change in the receiver. 4 Models, to fit any set. Easily installed. Price $2.50. Write for leaflet illustrating and describing the different models ARTHUR H. LYNCH, Inc. 177S Broadway, (at 57th St.) New York 'Manufacturers of LYNCH RESlSTORS> E0UALIZ0RS, SUPPRESSORS,MOUNTINGS, RESISTANCE -COUPLED KITS, ETC ■ E^i vrTn /%. n ^— 2> Wf% I ' Hi H Hnff A^^k I V Pure silver contact float* B J H_^| B A^k^J H B^LA ^» U-W ing on a fused graphite resistance element gives MTM ^ amazing smoothness Presents «^™ A Remai'kable Afew VOLUME CONTROL VaWe volume con1 trol capable 01 trad has ^^^^^^ ,h X compact "",5 ft, e-wa«s . n_ sately dilates nceele«e»tandt^nt the contact a ge m resx over no appreciable designed to flo* un_ microscopxe dep sample radio Vr-r~e , 1 Send complete* for tests. Individual Title Fi"0 .State address City EIECTRAD • may, 1929 . . . page 47 •