Radio Digest (Oct 1923-July 1924)

RADIO DIGEST — Illustrated Octobvi j-,. 1!)23 Further Details of the Famous Miloplex Hook-Up Part III— Considering King Miloplex II Again By the Mystery Man b«en In .1: build covoring ■ time ircuit 1 that much :er re the army of ex ntent with the science — the < no ambition or realms of those y virtue of hav all or most of the then, that should I ip the "blind alley" ;e layman's mind, it for a s in order to better . j: that which is not able. vices of a horn I am very the veil of s What" to all question isely clear my fog of misunderstand en. if any statement ur mind. He knows loplex from the first the point where the last ■lerrily on" — to the plate. far from me as one to. he naturally was rtment I let him ry and hold the soldering iron while I tried to understand him and 1 little circuit talk that's what for. anyway, 'hain't Vrtainly. You know I never could description covering Tapped Amplifying Transformers ho demand more than ha* heretocured from audio trequency amSupplied u MODERN 10 TO 1 ertorm-cuits. Also preferred by many stage of standard audio fre quency amp!: MODERN 4 TO 1 ■■vith a welcome wherever it goes. The repeat orders attest to its all around efficiency. Write today for illustrated circulars and bulletins. The Modern Electric Mfg. Co. Dept. 41* Toledo. Ohio V the specifications of a technical editor. Trying to get it is a good deal like Mahoney's specification of a cook, viz., "a couk usually is a woman, who can stand a temperature of 175 degrees and bawl out the ice man for his generosity in giving away ice in the winter time." Now you know what a cook is; neither do I, and to my mind a technical editor is one thoroughly capable of thinking in terms of calculus, but compelled to write not above the sixes in the multiplication table. Now. that you have promised to send him your inquiries, let's travel on. as the purpose of this article is to give you a real surprise — a story— that will cause Ready for Immediate fllMJSfil Delivery— \^lttfiSS»^' ALL PARTS FOR THE Acmedyne Circuit as described by Mr. Lawrence Cockaday in the August issue of "Popular Radio," employed la the wonderful MelcoSupreme Receiver. Tuned Radio-Frequency at Its Best Telos Vario-Transf ormer $8.50 Telos Variometer $6.00 AMSCO Compensating Condenser $3.00 Complete knock-down parts for MelooSupreme. Including drilled engraved Bakelite panel, solid mahogany cabinet, and three No. 201-A Aqa Badlotrons «boU All goods absolutely guaranteed by manufacturer and ourselves. Shipped immediately. prepaid, on receipt of purchase price. Write for price list on our complete line of Quality apparatus. RADIO & MECHANICAL TRADING CORP. 23 Warren Street NEW YORK CITY 3 COAST NCH: League Bliig. ANGELES 'Built First to Last" This little beauty w; by our engineers only when convinced that they had produced the one socket that combines all the essential features of a good socket. 1. Positive Cotogrip Contacts. 2. Hard Rubber Insulation. 3. Rugged Construction. 4. Compact Design. 5. Concealed Mounting. It is impossible to show the unique mechanical action of Cotogrip contacts in a photograph. It is different from any other socket you have ever seen. This socket will interest you in every way. You ought to have one. Asit Your Dealer C0T0-C0ILC0 PROVIDENCE those who have not built the Miloplex (because it was so simple) to do so now, while to those who have, it offers somethingto look forward to. Remember, in my first article I cautioned all of you not to "peek" and say old stuff. So to those who have built it — greetings; to those who have not — get busy, because . . . listen, the last circuit, the "King Miloplex" is going to beat 'em all, and we are going to make it do this trick through merely changing a couple of wires. Now watch someone searching for the first diagram; yes the "Plex" is going to do DX, and do so without a lot of fuss or complaint. Will you have to rebuild your panel layout or add additional parts? No! No-! All we will do is get out the hot iron and change a couple of wires when — bang! — she will start hitting, and it seems to me you will feel well repaid for the few 10cents-per you invested, and like Radio Digest the better. Then, just to cap the climax, just to give you an extra ear of corn in the dozen, we will start amplifying it. You may make a mistake, but don't worry, always remember "that if people were not continually making mistakes they wouldn't put erasers on lead pencils. Besides, the technical editor will save your life. Maggie, the cook, just passed, and in passing I solicited information as to whether dinner was ready? "Certainly!" Try and get it," was her retort complete. Let's eat! (TO BE CONTINUED.) 2 6 5 O MILES with ONE TUBE. Broadcasting from Atlantic Coast and Cuba heard in California by users of tbe CROSS COUNTRY CIRCUIT. This range is due to simplicity of set and operation as only one control is used for tuning. Easily and cheaply built. Dry cell tubes may be used. Complete instructions. with panel layout, assembly views, etc., postpaid for 25c. Or further information for red stamp. VESCO RADIO SHOP, Bx. 117, Oakland, Cal. Triple Plate Voltage When using resistance coupled amplifiers the plate voltage should be about three times the value normally employed in order to overcome the loss in voltage through the resistance. 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Cincinnati, O. $150^ are you fur Dealers, nishin with "SERVICE"? g your customers This is a TELEFORCE product. Write for booklets. SERVICE RADIO CO. 4731 Montgomery Road CINCINNATI, OHIO