2N1653 Overview
Adjust for IB(on)= 82 = 1.5 Vdc, Adjust for I B(off) "" 0.2 Adc B3 = 12 Vdc Not required if current probe is used to read IBl PRF '00: 60 Hz Zenerselected to establish Sustaining Voltage. Series impedance and inductance must be kept to a minimum.