Design an unsymmetrical astable multivibrator shown in Fig.7p.1 using silicon n- p-n transistors having an output amplitude of 12 V. Given data, IC(sat) = 5 mA, hFEmin = 50, f= 5 kHz, duty cycle = 0.6. Voc Rei Q OFF C HH R C HH IBQ Rc Ic ON Saturation Fig.7p.1 Un-symmetric astable multivibrator