A 4 × 4 array of gold working electrodes and integrated potentiostat electronics, consisting of control amplifiers and current-input analog-to-digital converters, on a custom-designed 5 mm × 3 mm CMOS chip drive redox reactions using cyclic voltammetry, sense DNA binding, and transmit digital data off chip for analysis.
In this operating range the circuit provides a total harmonic distortion of THD=0.6% from X input to the output and THD=0.5% from Y input to the output for operating as voltage controlled amplifier.
Whisker stimulation was achieved by inserting individual whiskers into a glass capillary (1.5 mm outer diameter, World Precision Instruments, Florida) glued to a piezo actuator activated by a computer controlled amplifier (E-650 LVPZT, Physik Instrumente, Germany).
An automatic gain control transimpedance amplifier and linear post amplifiers are used to maintain a good performance with multilevel modulation.
His frustration with microphone mixing led him to experiment for a few years with microphone signals controlled automatically by voltage-controlled amplifiers (VCAs), finally developing the "Dugan Music System", shown to the AES at their 49th convention, held in New York in 1974.
The system, he said, "will feel like a highly engineered product to improve your life". Users will control the amplifier via the app, optimizing it for different environments.
The signal from the sensor (thermistor) is fed to a measuring and a control unit amplifier and a power interface.
Five labs using JFETs (arranged to behave like triodes and pentodes) investigate the behavior of series and parallel tuned circuits, bandwidth control, RF amplifiers, local oscillators, mixers, IF amplifiers, AM and FM detectors, audio stages, and RF measurements.
Fortunately, the company had a solution in a self-contained demonstration unit containing the Airhome control panel, amplifiers and speakers.
