Field effect transistor amplifier

Field-effect semiconductor device

Floating electrical output circuit

Frequency multiplier

Frequency response control circuit apparatus

Frequency tunable microwave apparatus having a variable impedanc

Full wave rectifiers

Gain control apparatus

Gain control circuit

Gain control circuit

Gain control circuits

Gain control circuits utilizing a novel semiconductor device

Gain-controlled amplifier

General purpose pole-zero single amplifier active filter

Generalized operational amplifier

Half-wave rectifier circuit

Harmonic generator

Hearing aid

Hearing aid malfunction detection system

High capacity recirculating delay loop integrator