Multivibrator
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A multivibrator is an electronic circuit used to implement a variety of simple two-state devices such as relaxation oscillators, timers, latches and flip-flops. The first multivibrator circuit, the as
A vacuum tube Abraham-Bloch multivibrator oscillator, France, 1920 (small box, left). Its harmonics are being used to calibrate a wavemeter (center).
An oscilloscope shot of the voltage of the collector (trace 1) and the base (trace 2) of a transistor in an BJT astable multivibrator. The emitter of the transistor in this example is connected to ground.
Graph showing the output waveform of the op-amp and the waveform formed across the capacitor C.
monostable multivibrator using op-amp
Comparator
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In electronics, a comparator is a device that compares two voltages or currents and outputs a digital signal indicating which is larger. It has two analog input terminals V + and V − and one binary di
LM393 dual comparator, a common comparator integrated circuit chip, shown on a circuit board
A precision calibration comparator