skema power amplifier pro and con

SKEMA POWER AMPLIFIER SOUND SYSTEM  PRO AND CON

BASIC POWER AMPLIFIER

power amplifier type

  Vacuum Tube
  High impedance – high voltage – danger!
  Tuned network – PI – 3:1 VSWR – No Coupler
  Two versions – Grid Driven /low drive
                        Grounded Grid/high drive

Solid State

  Low impedance – high current

  Fixed tuning – 50 ohms – max VSWR  2:1

  Two versions – Bipolar Junction Transistors

                        Field Effect Transistors

VACUUM  TUBE  PA  (hv/lc)