(Minimum-Supply-Voltage Lm380-Audio-Power-Amplifier (* 10 Volt))
(=> (Minimum-Supply-Voltage $X $Y) (Voltage $Y))
(=> (Minimum-Supply-Voltage $X $Y) (Semiconductor $X))
(Minimum-Supply-Voltage Lm383-7-Watt-Audio-Power-Amplifier
(* 5 Volt))
(Minimum-Supply-Voltage Lm383a-7-Watt-Audio-Amplifier (* 5 Volt))