Radio broadcast .. (1922-30)

.RADIO BROADCAST. Stewart-Warner Phono-Radio STEWART-WARNER CORPORATION: The new phonograph-radio combination manufactured by this company is contained in a cabinet of excellent construction and uses a screen-grid receiver in combination with a Gordon phono- graph motor. The cabinet has sliding doors and a fife for twenty records. List price: $285.75. New Freed Receiver FREED-EISEMANN RADIO CORPORATION: The new Model N R-90 employs an automatic tuning device which permits automatic selec- tion of ten favorite stations. It uses four screen- grid tubes, three as r.f. amplifiers and one as a detector. List price: $182.50. New Carryola Products ALLEN-HOUGH CARRYOLA COMPANY : The combination radio-phonograph cabinet, Model 175, contains an electric motor and turntable together wi th a Webster pick -up. Space is provided for the installation of any standard radio receiver and loud speaker. The Rotrola is a small portable phonograph designed for 60- cycle a.c. operation. Mamri.arliiii<l I li-O 30 HAMMARLUND-ROBERTS, INC.: This receiver is unit built at the factory and comes to the purchaser in the form of several units which can be wired together quickly. The set uses nine tubes with an automatic voltage regulator, a three-stage tuned band-pass filter with screen- grid tubes, a type 245 push-pull amplifier, com- plete shielding, and a cadmium-pi a ted chassis. To house the receiver nine special cabinets are available including one table model, six con- soles, and two phonograph-radio combinations. Complete parts for the Hi-Q 30 a.c.-operated receiver list at $162.50, parts of the tuner only (no a.f. amplifier) at $138.65. The complete parts for the Hi-Q-30 battery-operated receiver list at $119.15 and the tuner only at $93.80. Falck Screen-Grid Set ADVANCE ELECTRIC COMPANY: The Model 11 is a small console receiver using a "Neu- trocoil" louci speaker. A neutrodyiie circuit with controlled regeneration is employed. List price: $86.00. The Model 53 is a console set with an electrodyiiamic loud speaker. It uses screen-grid tubes and a 17lA power tube. List price: $112.00. The Model 23 lists at $118.00 ami uses a screen-grid tube and 245-type power tube. Centro-Matic Tone Finder EARL RADIO CORPORATION: The Earl Centro- Matic Tone Finder is an automatic tuning device which permits easy tuning to any one of ten favorite stations by simply pulling a lever. The Karl Model 33 containing this feature uses an eight-tube chassis with a phonograph pick- up jack. It lists at $179.00. New Crosley Model CROSLEY RADIO CORPORATION: The Crosley Model 33-S which was announced recently is a seven-tube screen-grid receiver housed in a console cabinet. The cabinet is of walnut veneer. A feature of the receiver is the triple-range con- trol switch to give distant, near-by, and local reception. New Portable Phonograph STEVENS MANUFACTURING CORPORATION: The new Stevens portable electric phonographs are made in two models. The type AC is de- signed for operation from a light socket. The type B is operated from three standard dry-cell batteries placed in a compartment in the case. The d.c. model is designed especially for porta- ble use and it may be played anywhere at any time. Both models are equipped with a mechan- ical reproducer but an electrical reproducer can, of course, be used. Sentinel Receivers SENTINAL MANUFACTURING COMPANY: The Model 666-C is a nine-tube receiver with four screen-grid tubes, two 227*s, and two type 245's. It is a phonograph-radio combination and uses a United pick-up and United electric motor. The li t price is $149.50. The Model 666 is simi- lar to the 666-C except that it does not contain a phonograph, being simply a console radio receiver. List price $99.50. Gulbransen's New Set GULBRANSEN COMPANY: The Gulbransen combination radio-phonograph. Model 200, combines all the features of the Gulbransen nine-in-line screen-grid radio set, and has in addition a phonograph compartment in the top. It is equipped with a ten-inch electrodynamic loud sj>eaker and uses five 226's, one 224, two 245's, and one 280. Price: $235.00. New Victor Receiver RADIO-VICTOR CORPORATION OF AMERICA: The Victor receiver is now available in a new cabinet design. It is known as the Model 952. Price: $215.00. A. C. Short Wave Set PILOT RADIO AND TUBE CORPORATION: A new screen-grid short-wave receiver known as the A.C. Super-Wasp has been designed. It uses a special 227-type detector tube preceded by a screen-grid tube. The wavelength range is 14 to 200 meters, although extra coils can be obtained to extend the range to 500 meters. Sterling Radio Receivers STERLING MANUFACTURING COMPANY: The Sterling Concertone chassis employs three screen-grid tubes and a two-stage a.f. amplifier with 245-type power tubes in push pull in the output. The electrodynamic loud speaker is supplied directly from the power unit. .The Troubadour model lists at $129.50, the Sere- nader at $149.50, and the Imperial at $187.50. All three sets use the Concertone chassis. Padded Set Jackets CHARLES J. WEBB AND COMPANY: This company makes padded jackets for use by dealers to protect radio receivers during ship- ment. They are made in three standard sizes. Erla DeLuxe Console ELECTRICAL RESEARCH LABORATORIES INC.: The Model 30 Erla receiver uses a seven-tube chassis with two screen-grid tubes, two 227's, two type 245's, and one 280. A long and short antenna control is provided on the panel. Tip jacks are provided for phonograph pick-up connection. The Model 30 lists at $165.00 DECEMBER 1929 103