title: Computer-controlled attenuator.
abstract: Various possibilities for applying electronic computer-controlled attenuators for the automation of physiological experiments are considered. A detailed description is given of the design of a 4-channel computer-controlled attenuator, in two of the channels of which the output signal can change by a linear step, in the other two channels--by a logarithmic step. This, together with the existence of additional programmable timers, allows to automate a wide range of studies in different spheres of physiology and psychophysics, including vision and hearing.
authors.affiliation: Institute of Physiology, Bulgarian Academy of Sciences, Sofia.
authors.forename: D
authors.initials: D
authors.lastname: Mitov
authors.forename: Z
authors.initials: Z
authors.lastname: Grozev
mesh_terms: D000669:Amplifiers, Electronic; D004558:Electric Stimulation / Q000295:instrumentation*; D004581:Electronics; D008838:Microcomputers