Unnumbered Page Advertisement 1

Radio Record, Volume III, Issue 40, 17 April 1930, Unnumbered Page

Introducing 66 GULBRANSEN " Precision-built Screen-Grid Radio NINE IN-LINE THE GULBRANSEN Receiver i8 the product of the world' s largest maker of pianos, in business for twenty-three years, Fe and with a standing and reputation second to none; The present nine-valve screen-grid model is the latest develop- Ote ment of the famous Hazeltine Laboratories, and is the: only 41n receiver that combines the new 'Neutrodyne Plus circuit with screen-grid power detection; with greatly improved performance 3s a regult: In addition, GULBRANSEN offers all the latest improve- The- Chassio; ments and: refinements turned out by the following big com panies and research organizations; under whoge patents GULBRANSEN i8 licensed to operate: American Telephone and Telegraph Companys Western Electric Company- Wegtinghouse: General Electric. Redio Corperation: Hazeltine Laboratories. Lektophone Corporation (Lazge Diameter Dynamic; Speakers) . Stevens (Speaker Diaphra g1na) _ Mieasnep (Eliminating Hum in Power Supply Circuit of Electric Receivers)_ Features 0f Gulbransen Radio : 1. Effciency of each sel must measure within feur millionths of 2 vol ef mnaster laboratory medel. 2a Double Primary Circuito 3. Push-Pull Amplification uging 245 valves. 4. Screen-Grid Power Detection, 5. 10-inch Dynamic Speaker. 6. Phono-Radio Switch 7, Local-Distance Switch. 8. 9 Valves in Line: 9. Equal Amplification__Higk and Low Waves. Combination Radio and 10. Cabinets by piano craftsmen. Gramophone Model 110 Chasais and power pack in one unit 485 12 Completely Shielded. 13. Oversize Audio Transformere: Straight Radio Models and 14 Accurately Matched Radio Transformers- 950 455 If there is. no Dealer in your town, please Write-e* Ha W; CLARKE LTD: 182 WAKEFIELD STREET, WELLINGTON