power amplifier rating and linear power amplifier tubes and possible problem

POWER AMPLIFIER SOUND SYSTEM

power amplifier rating

Rated Power Output – Efficiency
Class C – Class AB1
Max allowable VSWR
Modes – SSB – CW – Digital – RTTY
Plate Voltage – Collector Voltage
Static Current
Max Full Load Plate/Collector current
Tuning Required – Network/Antenna Coupler
Drive required 
Cooling required – Blower
ALC provided
Input AC power – 120v/240v

possible problem

Power Out – Splatter - Distortion

RF drive – splatter – grid damage - distortion

ALC – too much – pumping - distortion

Neutralizing – instability – parasites

Low line voltage

Cooling – RTTY – voice/CW

Filament Voltage – tube life – low emission - low output

Incorrect Loading – distortion

Incorrect Static current (bias) - distortion