What is the function of Zener diodes in an astable multivibrator?
Would really help if someone could provide a clearer explanation.


The zeners are there to fix the peak to peak amplitude to +/-(Vz + Vf)

Where Vz is the zener breakdown voltage of one zener and, Vf is the forward voltage of the other series connected zener (because one will be forward biased and one will be reverse biased).