Radio Broadcast (Nov. 1925-Apr 1926)

270 RADIO BROADCAST ADVERTISER At Last! oA %eal ''Panel Engraving ^Machine at a cPrice you can afford. Low in price because it is designed for panel engraving only. Capacity 14 x 40" For engraving your own panels, or panels for others with any marking desired, including Trademarks, special designs and serial numbers. Being designed particularly for panel engraving it is the most rapid and accurate machine for engraving panels. Simple to operate. Price of machine with full equipment, including master letters and characters, $135.00 f.o.b., Forestdale, R. I. Wire or write BRANCH TOOL CO., D*p' G Forestdale Rhode Island AN IDEAL XMAS GIFT Increases selectivity. Gives wonderful results. Not attached to, but merely placed under the telephone. Price One Dollar. Complete with insulated wire and simple instructions. At Your Dealer or Mailed C.O.D. on 3 days' approval. ^ ^fHTEHNAPHOHE CO.. 90 Wesl St., New York City Building Better Service into RADIO PARTS Aside from recognized radio uses in which no other metals can be substituted, Copper and its alloys help you to make good radio sets better sets. For instance, binding posts are superior posts, and battery nuts give best service and satisfaction when made of dependable free-cutting Brass rod. And — their speedier produc. tion makes labor costs lower. COPPER Csr4 BRASS RESEARCH ASSOCIATION 25 Broadway, New York EARN BIGGER PAY SO "I have more than doubled my infly come during the past year," writes m one of our students. TYREAN ■ Instruction shows how to find and I . \ take your proper place in the world. I It develops executive ability and V lifts you out of the poorly paid M . class. Entirely different from all others. Enrolments ""•^B accepted only under money-back guaranty. CLIP THIS SD AND HAIL IT TO-DAY TO TYREAN INSTITUTE PALMER. MASS. Tell me about your GUARANTEED Salary-Raising Courses. s.s LEARN THE CODE AT HOME with the OMNIGRAPH " Just Listen — The Omnigraph will do the teaching" THE OMNIGRAPH Aut< in your own home— qu or to Sounder, it will send ym THE OMNIGRAPH is with a money back guarantee, the Dept. of Commerce uses th. OM1NIGKAPII lins been s natic Transmitter will teach you both the Wireless and Morse Codes— right ckly, easily and inexpensively. Connected with Buzzer, Buzzer and Phone 1 unlimited messages, at any speed, from r> to 50 words a minute, not an experiment. For more than U> years, it has been sold all ovor the world The OM M(. It A PII is used by several Depts. of the U. S. Govt.— in fact, OMNIGRAPH to test all applicants applying for a Radio license. The icceSBfully adopted by the leading Universities, Colleges and Radio Schools. Send for FREE Catalogue describing lliree models. DO IT TO-DAY. THE OMNIGRAPH MFG. CO., 1 3K Hudson St., New York City If you own « Hadio Phone set and don't know the code—vou are missing most of th* fun 1926 Improved Radio ALL the practical improvements developed during the season are incorporated in the new Arborphone Receiver. For clarity of reception and simplicity of tuning just compare the Arborphone with any other set, regardless of price. Arborphone owners can match performance with anyone. Distance — coast to coast — is at your command. While not elaborate, the cabinet that houses this precisionbuilt circuit is really beautiful in its simplicity of de For a thorough and consistent enjoyment of Radio's ever-improving programs Arborphone will satisfy completely those who demand simplified and perfected reception. 55° A most interesting catalog will be mailed on request. Dealers will gladly give you an Arborphone demonstration. $60.00 in Rocky Mt. and Pacific Coast States MACHINE SPECIALTY COMPANY ANN ARBOR MICHIGAN ARBORPHONE This is a good time to subscribe for RADIO BROADCAST Through your dealer or direct, by the year only $4.00 DOUBLEDAY, PAGE & CO. GARDEN CITY, NEW YORK •ft; Tested and approved by Radio Broadcast -jfc