Outline for Amplifiers:

1. Types (1)
   1. Direct Current (Direct Connection)
   2. Audio
   3. High Frequency
   4. Video (Wide Band)
   5. Tuned
      
2. Types (2)
   1. Voltage Amplifier
   2. Current Amplifier
   3. Power Amplifier
      
3. Classes
   1. A
   2. AB
   3. B
   4. C
   5. D
      
4. Biasing
   1. Vacuum Tube
      1. Fixed Bias
      2. Cathode (Self Bias)
      3. Grid Leak Bias
      4. Contact Bias
         
   2. Bipolar Transistor
      1. Fixed Bias
      2. Emitter Self Bias
      3. Collector Self Bias
      4. Voltage-Divider Bias
         
5. Coupling
   1. Direct Coupling
   2. Resistor-Capacitor (RC) Coupling
   3. Impedance Coupling
   4. Transformer Coupling
   5. Opto-Coupling
      
6. Stages
   1. Cascade
   2. Cascode
      
7. Return Circuit (Signal Return - Common Point)
   1. Vacuum Tube
      1. Common Cathode (most common)
         Grounded Cathode
      2. Common Plate ("Cathode Follower)
         Grounded Plate
      3. Common Grid
         Grounded Grid
         
   2. Bipolar Transistor
      1. Common Emitter (most common)
         Grounded Emitter
      2. Common Collector ("Emitter Follower")
         Grounded Collector
      3. Common Base
         Grounded Base
         
   3. Feedback
      1. Types
         1. Positive (Regenerative)
         2. Negative (Degenerative)
      2. Classes
         1. Series
         2. Shunt
         3. Voltage
         4. Current
            
   4. Distortions
      1. Amplitude (Linearity)
      2. Frequency
      3. Phase
      4. Inter-Modulation (Cross-Talk)
      5. Transient
      6. Feedback
         
   5. Frequency Characteristics
      1. Low-Frequency Response
         Low Frequency Cut-Off
      2. High-Frequency Response
         High Frequency Cut-Off
      3. "Miller Effect"
      4. Bandpass v.s. Bandwidth
         
   6. Neutralization
      1. Bridge
         1. Grid
         2. Split-Stator
         3. Push-Pull
      2. Shunt (Inductive)
         
   7. Stability (Temperature)
      1. Vacuum Tube
         1. Heater
         2. Environement
            
      2. Transistor
         1. Leakage
         2. Environment
         3. Thermal Runaway
            
8. Special Types
   1. Klystron
   2. Magnetron
   3. Magnetic
   4. Amplidyne
   5. Parametric (Pump)
   6. Traveling Wave Tube (TWT)
   7. MASER

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Amplifiers - SfE-DCS, ddf - 08/03/2001