Page 27 - Electromechanical Devices and Components Illustrated Sourcebook

List of Illustrations xxv

Figure 11-16 Planar Loudspeaker 197
Figure 11-17 Electrostatic Loudspeaker Element 198
Figure 11-18 Electrostatic Loudspeaker Schematic 198
Figure 11-19 Electrit Loud Speaker Schematic 198
Figure 11-20 Plasma Loudspeaker Schematic 198
Figure 11-21 Two- and Three-Driver Loudspeaker Cabinets 199
Figure 11-22 Two-Way Passive Crossover Schematic 199
Figure 11-23 Stereo Sound Reproduction System 199
Figure 11-24 Headphones 199
Figure 11-25 Carbon Microphone 199
Figure 11-26 Carbon Microphone Circuit 200
Figure 11-27 Two-Way Telephone Circuit Using Carbon Microphones 200
Figure 11-28 Dynamic Microphone Element 200
Figure 11-29 Typical Commercial Dynamic Microphone 200
Figure 11-30 Piezoelectric or “Crystal” Microphone Element 200
Figure 11-31 Piezo Crystal Microphone 201
Figure 11-32 Condenser Microphone Schematic 201
Figure 11-33 Condenser Microphone Cartridge 201
Figure 11-34 Commercial Condenser Microphone 201
Figure 11-35 Microphone Sensitivity 201
Figure 11-36 Microphone Patterns 202
Figure 11-37 Commercial Shotgun Microphone 202
Figure 11-38 Parabolic Microphone Set 202
Figure 11-39 Geophone 203
Figure 11-40 Geophone Field Assembly 203
Figure 11-41 Three Element Geophone Assembly 203
Figure 11-42 Hydrophone Assembly 203
Figure 11-43 Towed Hydrophone Array 203
Figure 11-44 “T” Post Hydrophone Direction Finder 204
Figure 11-45 Cross Post Hydrophone Direction Finder 204
Figure 11-46 Spherical Hydrophone Array 204
Figure 11-47 Morse Code 205
Figure 11-48 Basic Telegraph System 205
Figure 11-49 Telegraph Sounder 206
Figure 11-50 Telegraph Key 206
Figure 11-51 Telegraph Relay or Repeater 206
Figure 11-52 Two-Way Telegraph System with Relay Station 207
Figure 11-53 Two-Way Telephone Circuit 207
Figure 11-54 Two-Way Telephone Circuit with Magneto Ringers 207
Figure 11-55 Early Wall Hanging Telephone 208
Figure 11-56 Military Field Telephone 208
Figure 11-57 Simplified Operator’s Switch Board Schematic 209
Figure 11-58 Ten-Channel Portable Switch Board 209
Figure 11-59 Subscriber’s Telephone Station 209
Figure 11-60 Early Rotary Dial Telephone 210
Figure 11-61 AC Vibrator 210
Figure 11-62 Rotary Vibrator 210

CHAPTER 12
Figure 12-1 Early Incandescent Light Bulb 212
Figure 12-2 Simple, Bench Built Incandescent Light Bulb 212
Figure 12-3 Commercial Incandescent Light Bulb 212
Figure 12-4 Fluorescent Light Bulb 213
Figure 12-5 Fluorescent Light Bulb Starting Circuit 213
Figure 12-6 Glow Switch Starter 213
Figure 12-7 Fluorescent Light Bulb Starting Circuit with Ballast 213
Figure 12-8 Fluorescent Lamp Ballast 213