Radio broadcast .. (1922-30)

Record Details:

Something wrong or inaccurate about this page? Let us Know!

Thanks for helping us continually improve the quality of the Lantern search engine for all of our users! We have millions of scanned pages, so user reports are incredibly helpful for us to identify places where we can improve and update the metadata.

Please describe the issue below, and click "Submit" to send your comments to our team! If you'd prefer, you can also send us an email to mhdl@commarts.wisc.edu with your comments.




We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.

Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.

INDEX— Continued PAGE Electrifying Battery-Operated Sets 346 Filter Circuit Characteristics. 274 Formulas for Power Output. . 352 Frequency Characteristics of Television Amplifier Devel- oped by. the Bell Telephone Laboratories 134 Heater Connections for A. C. Tubes 272 Hook-Up for Short-Wave and Broadcast Receivers, A .... 60 Importance of Bass Notes .... 348 Importance of Correct Fila- ment Voltages 354 Mathematics of the Tuned Circuit 348 Moving-Coil Loud Speakers. 58, 204 Neutralizing and C^u Bat- ing R. F. Circuits. . ." 412 Obtaining Grid Bias frqm B- Power Units 414 Power in Broadcasting Har- monics 348 Power Output 58, 132. 206 Power Output Characteristics of Vacuum Tubes 132 Resistance-Coupled Amplifiers 130, 132, 202 Shielding 204 Simple Two-Way Telephone Set 414 Supplying Power Devices from 220 Volts A. C 130 Television 58, 60, 134 Test for a Faulty Push-Pull Amplifier 352 Three Types of Graphs 272 Voltage Gain in Resistance- Coupled Amplifiers 274 Wavelength-Kilocycle Chart.. 276 Where A. C. Hum Originates.. 276 'Laboratory, "Strays" from the (Keith Henney): Accuracy of the "Slide-Back" Voltmeter 97 Accuracy of Variable Con- densers 240, 301 Approved Amateur Intermedi- ates 378 Cause of Winter Static 377 Correction, A 378 Dynamic Vs Magnetic Speak- ers 23 Empirical Rules and Formulas 170 Experiments With the Pentode 377 "Gyps" Are Still At It, The. . 24 How Long Will the Engineers' Job Last? 240 How Much Output Power Is Needed? 169 How to Stabilize Rice Ampli- fiers 24 How Useful Is a Tube? 240 Hum in the "Lab" Circuit Receiver 97 Impedance of Standard Loud Speakers 240 Importance of Reducing A. C. Hum 301 Is a 112 Tube Needed in the First Stage? 98 League of Nations to Broad- cast 301 Life of A. C. Radio Tubes .... 378 More Data on Underground Aerials 98 New High Voltage Rectifier Tube 240 New Precision in Quartz Plates 24 New Radio Tubes in England 301 New Radio Tubes Needed. ... 24 New Regulations of Radio Commission 240 New Trends in Radio Design 300 Novel Dynamic Baffle 378 Obtaining C Bias for A. F. Amplifiers 169 Output Vs Voltage Amplifica- tion . . 377 PAGE 1 ' Phantom'' Power Tubes .... 378 Portable Radio Sets 24 Power of Station Harmonics.. 239 Present Designs Do Not Con- sider Economy 23 Rated Voltages Should Be Ap- plied to Tubes 239 Receiving on 600 Meters with Lab. Set 301 Regarding Power, Efficiency and Energy 239 Regarding Series-Filament Operation 23 Removing Noise in Shielded Receher 301 Selectivity in the Browning- Drake Set 301 Seven New Radio Booklets. . . 24 Some Interesting Formulas... 169 Task of Editing Radio Copy, The 170 Test for Screen-Grid R. F. Tubes, A 240 Three New Pamphlets Availa- ble 239 Two New A. C. Tubes on the Way 300 Underground Aerials 24 Vacuum Tubes as Fuses 377 What Is a Dynamic Speaker? 169 Letters from Readers 137, 354 ""Loop-Operated Browning-Drake Re- ceiver. A (J. H. Gockel) 171 *Loud Speaker, The Condenser Type (Joseph Morgan) 369 *Loud Speakers—A JDebate 109 *]\/TANUFACTURED Receivers, 1VJ. "Radio Broadcast's" Service Data Sheets on (See Set Data Sheets) 41, 121, 177, 265, 327, 304 Manufacturers' Booklets 56, 128, 199, 270, 334 *March of Radio, The (E. H. F.) 16, 91. 163, 233, 296, 372 Market, The Real Size of the Radio ... 379 *Marketplace, In the Radio.. . .267, 331, 406 *Measurements on Broadcast Receivers (L. M. Hull) 230 *Measurements on Dynamic Speakers (Frank C. Jones) 316 *Measuring a Receiver's Performance (Kenneth W. Jaryis) 167 Mexican Broadcasting Stations 358 Milestone in Television, A 17 *Modulator for the 1929 Short-Wave Transmitter, A (Robert S. Kruse) ... 38 *More Data on the Sargent-Rayment (Howard Barclay; 197 More Discussion on Frequency Control. 373 *Multiple-Receiver Antenna System, A (V. D. Landon) 291 ATEED for Defining Television Prac- 1\ tices 18 New Allocation Repairs the Broadcast Structure 16 *New A. C. Screen-Grid, Browning- Drake Receiver, The (Glenn H. Browning) 115 *New Apparatus 52 *New Apparatus and Its Applications 127, 194 *New Audio System for Dynamic Speaker Reproduction, A (Frank C. Jones; 29 *New Automatic Volume Control Sys- tem (Charles Williamson) 299 *New High-Voltage Metallic Rectifiers for B-Power Units (J. George Uz- mann) 120 New Nation-wide Picture Transmission Service 18 New Radio Service to Aviation, A 297 *New Trends in Radio Designs for 1929- 30 (Keith Henney) 14 *New Uses for Power Amplifiers (Fred H. Canfield) 367 News of the Radio Industry 94, 236 Newspaper Has Radio Picture Transmitter 18 PAGE */^ORGANIZATION, An Unusual W (Robert S. Kruse) 302 *"Our Readers Suggest ..." 47, 114, 192, 260, 324 *Phonograph-Radio Amplifiers (How- ard E. Rhodes) 88 Picture Transmission Service. l\eiv Na- tion-wide 18 Picture Transmitter, Neuispjpzr Has Radio 18 *Power Amplifiers, New Uses for (Fred H. Canfield) 367 *Power Rectifiers, Characteristics of (Roger Wise) 393 *Power Supply for the "Vivetone 29," An Amplifier and (R. F. Goodwin). . 45 *Practical Radio Service Records (John S. Dunham) 392 *Problems in Synchronizing Television Receiving Discs (Boyd Phelps> 123 *Production Testing with Oscillators (Richard F. Shea) 387 Program Possibilities May Open New Radio Market, A Study of 296 Progress in Short and Long Wave Radio 235 Progress in the Field of Aircraft Radio. . 93 *Push-Pull A. F. System, An Efficient (Kendall Clough) 241 VARTZ Crystals (R. C. Hitch- cock) 85 *Questions Answered, A Few Radio.... 166 J~>ACE for Television Publicity, The 17 -A. Radio Abroad 94 *"Radio Broadcast's" Home Study Sheets (Keith Henney) (See Home) 27, 107, 183. 253, 307, 397 ""Radio Broadcast's" Laboratory In- formation Sheets (Howard E. Rhodes) (See Laboratory) 56, 130, 202, 272, 346, 412 ""Radio Broadcast's" Service Data Sheets on Manufactured Receivers (See Sets) 41, 121, 177, 265 *"Radio Broadcast's" Set Data Sheets (See Sets) 327,403 *Radio Design for 1929-30. New Trends in (Keith Henney) 14 Radio in Foreign Countries 19 Radio Industry, News of the 94 Radio Manufacturers, With the 165 Radio May Become the Cornerstone of the Amusement Industries 91 Radio Picture Transmitter, Newspaper Has .... 18 *Radio Service Records, Practical (John S. Dunham) 375 Radio Service to Aviation, A New 297 *Radio Servicing, The Business Side of (John S. Dunham) 236 Real Size of the Radio Market. The ... 379 *Real Versus Apparent Selectivity (Kenneth W. Jarvis) 399 Reasons for the 300-Mile Chain Regu- lation 92 Regenerative Decision, The 164 Regulation of Allocations Attempted .... 373 *Removing Nonsense from Short-Wave Transmission (Robert S. Kruse) Ill *Routine of Testing Receivers, The (John S. Dunham) 375 •OARGENT-RAYMENT, More Data O on the (Howard Barclay) 197 Schedule of the Best Short- Wave Programs 298 Schedule of Broadcast Television Trans- missions 234 *Screen-Grid Browning-Drake, The New A. C. (Glenn H. Browning) 115 *Screen-Grid Receiver, An A. C. Band- Pass—The Master "Hi-Q 29" (Wil- liam E. Barton) 117 *Screen-Grid Receiver, The "Chron- ophase" (Bert E. Smith) 49 *Selectivity, Real Versus Apparent (Kenneth W. Jarvis) 399 *Service Data Sheets on Manufactured Receivers, "Radio Broadcast's" (See Set Data Sheets) 41, 121, 177, 265