This paper is an extract of one of the research questions from a PhD study on conceptions and performance of student teachers of physics in basic electronics. The study sought to investigate the misconceptions student teachers of physics hold about basic electronics in the Zambian context. A mixed-methods approach was employed to investigate the issues involved. The study revealed several misconceptions held by student teachers of physics in basic electronics, the common ones being that: Cathode rays are waves which travel at the speed of light (32%), Half wave rectification produces an output, part of which is direct current and the other part an alternating current (38%), and that a capacitor discharges when it is not part of a circuit (33%). In view of these findings, the study recommended that: Lecturers at the University of Zambia (UNZA) who handle physics student teachers in introductory electronics should address this issue, for a possible solution. Furthermore, the University of Zambia should introduce a course in basic electronics, aimed at changing, overcoming or dislodging such misconceptions so that student teachers enter the teaching profession with viable/valid conceptions.