’gamma-control’ amplifier

124A lock-in amplifier

2 x Booster Amplifier BA2

absolute-value amplifier

absorbed current amplifier

AC amplifier

AC power amplifier

Accurate power amplifier

ACID AMPLIFIER

acoustic amplifier

acoustic pressure amplifier

active interference filter laser amplifier

Active mixer and amplifier

AD811 operational amplifier

Adaptive Feedforward Amplifier

adder amplifier

aerial amplifier

AFA (audio-frequency amplifier)

AGC amplifier

air amplifier