Regenerative feedback

Degenerative feedback

Current controlled feedback

Voltage controlled feedback

VCE (max) in volts

VBE (max) in volts

VCB (max) in volts

VCC in volts

Common base configuration

Common emitter configuration

Common collector configuration

Common drain amplifier configuration

Complex design

Higher thermal stability

Requires complicated bias arrangement

Silicon transistor needs low cut-in-voltage

NPN has lower switching speed

NPN has good bias stability

NPN has higher switching speed

Low operating voltage