Hartley oscillator
Colpitts oscillator
Quartz crystal oscillator
R.C phase shift oscillator
Lightly doped and very thin
Heavily doped and very thin
Lightly doped and very larger
Heavily doped and very larger
Astable multi vibrator
Bistable multi vibrator
One shot multi vibrator
Monostable multi vibrator
Voltage control device
Current control device
Positive feedback device
Low input impedance device
Relaxation oscillator
Broadcast transmitter
Loud speaker amplifier
Microphone input device