Vacuum tubes in wireless communication
Subtitle: a practical text book for operators and experimenters
Publisher: Wireless Press, Inc; Wireless Press
Published: 1919
Place of publication: New York
Language: eng
Number of pages: 202
Table of contents: title: CONTENTS; title: INTRODUCTION; title: 1. Audio and Radio Frequency Currents. 2. Damped and Undamped Oscillations: (a) The Use of Rectifiers, (b) The Detection of Continuous Oscillations. (c) Distinction Between Continuous and Discontinuous Wave Systems. 3. Receiver Circuits: (a) The Necessity for Tuning, (b) Tuning in Practice. 4. The Telephone Receiver.; title: PART I; title: THE OSCILLATION VALVE IN RADIOTELEGRAPHY; title: 5. Foreword. 6. What Is an Electron? 7. How May Electrons Be Set in Motion? 8. Fleming's Discovery. 9. The Oscillation Valve. 10. Demonstration of Rectifying Properties. 11. Non-Uniform Conductivity of the Valve. 12. How the Valve Becomes Saturated.; title: PART II; title: PRACTICAL APPLICATIONS OF THE OSCILLATION VALVE; title: 13. In General. 14. Action of the Simple Valve. 15. The Practical Oscillation Valve Circuit in Radio: (a) Fleming Valve Circuits in Simple Form, (b) Other Circuits for the Vacuum Valve. 16. The Three-electrode Valve, (a) Characteristic Curve of Three-Electrode Valve. (b) Valve Terminology. 17. The Three-electrode Valve as an Electron Relay and Rectifier: (a) The Valve as an Electron Relay (without Grid Condenser), (b) Functioning of the Valve as Explained from the Characteristic Curve, (c) Relaying Action, (d) Use of the Three-Electrode Valve with Grid Condenser, (e) Radio and Audio Frequency Component of the Plate Current, (f) Summary of the Phenomena of the Characteristic Curve. 18. The Timed Plate Circuit.; title: PART III; title: CASCADE AMPLIFICATION BY THE VACUUM VALVE; title: 19. In General. 20. Cascade Radio Frequency Amplifier: (a) Curves of the Cascade Amplifier. 21. Cascade Audio Frequency Amplifier. 22. Combined Radio and Audio Frequency Cascade Amplifier.; title: PART IV; title: THE REGENERATIVE VACUUM VALVE AMPLIFIER; title: 23. In General 24. Preliminary Considerations. 25. The Principle of Regeneration. 26. Radio Frequency Regenerative Circuit: (a) Phenomena of Regeneration. (b) Adjustment of Regenerative Amplifier. 27. Tuned Plate Circuits. 28. Audio Frequency Regenerative System. 29. Combined Audio and Radio Frequency Regenerative System. 30. Electrostatic and Direct Magnetic Coupling. 31. The "Reaction" Circuits of Franklin and Marconi 32. Simple Regenerative Circuit.; title: PART V; title: COMBINED REGENERATIVE AND CASCADE AMPLIFICATION SYSTEMS; title: 33. In General. 34. Regenerative Cascade Systems. 35. Audio Frequency Regenerative and Cascade Systems.; title: PART VI; title: THE VACUUM TUBE AS A DETECTOR OF CONTINUOUS WAVES. AUDIO FREQUENCY TUNING CIRCUITS. SPECIAL CIRCUITS FOR THE VACUUM TUBE.; title: 36. Reception of Continuous Oscillations. 37. The Theory of the Beat Receiver: (a) Phenomenon of Beats. 38. The Simple Heterodyne: (a) Curves of the Beat Receiver in Radio. 39. Selectivity by the Heterodyne. 40. Heterodyne with the Vacuum Valve as a Detector. 41. The Vacuum Valve as a Generator of Radio Frequency Oscillations. 42. The Regenerative Beat Receiver: (a) How the Valve Is Set Into Self-Oscillation: (b) The Phenomena of the Self-Heterodyne. 43. Audio Frequency Tuning. 44. The Weagant Undamped Wave Receiver. 45. Modified Weagant Beat Receiver. 46. Reception of Continuous Waves by the Valve Without Beats. 47. Cascade Amplification. 48. Cascade Regenerative Systems for Beat Reception. 49. Beat Reception from Damped Wave Transmitters. 50. Special Circuits for the Vacuum Valve: (a) The Use of a Rotary Condenser for the Reception of Continuous Oscillations. 51. "Open Circuit" Oscillators for the Vacuum Valve: (a) Modified Open Circuit Oscillators. 52. Amplification by the Heterodyne System. 53. Kenotron and Pliotron Vacuum Tubes: (a) The Connections of the Pliotron for the Generation of Radio Frequencies at High Current Values, (b) The Pliotron as a Generator of High Voltages at Radio Frequencies.; title: PART VII; title: WIRELESS TELEPHONY; title: 54. In General: (a) Fundamental Circuits of the Three-Electrode Tube as a Radiophone Transmitter. (b) Rounds* Wireless Telephone System. 55. Hund's Method of Radio Frequency Modulation. 56. Englund's Wireless Telephone System. 57. Carson's Proposed Wireless Telephone System. 58. Espenschied's Duplex Wireless Telephone System. 59. Englund's Duplex Radio Telephone and Radio Telegraph System.; title: PART VIII; title: THE DYNATRON DETECTOR AND OSCILLATOR; title: 60. The Dynatron. 61. The Dynatron as an Oscillator. 62. The Dynatron as a Detector of Electrical Oscillations. 63. The Dynatron as a Compensator for Circuit Losses. 64. The Pliodynatron. 65. The Pliodynatron as a Detector. 66. The Pliodynatron in Radio Telephony.; title: APPENDIX; title: Diagrams Illustrating Certain Fundamental Actions of the Vacuum Tube as an Oscillation Detector in Radio Telegraphy.