multivibrateur astable

OBS: [Dans le cas d'un] multivibrateur astable (ou auto-oscillateur), si le couplage est assuré par capacité, il conduit à un oscillateur qui produit un train continu d'oscillations rectangulaires.

CONT: The Flip Flop is a Free-Running Multivibrator. The circuit is self-starting and only one LED is on at a time. It is a free-running multivibrator (this means it does not stop) and we will describe its operation in a non-technical way. A free-running multivibrator is also called an astable multivibrator (meaning it has no stable states) and that is why it flips from one state to the other continuously.
OBS: ... the astable multivibrator uses capacitor (ac) coupling between the transistor amplifier stages. Astable multivibrators have no stable state; ... This characteristic makes them useful as generators for producing repetitive waveforms of a triangular nature.