Diode symbols; Diode characteristics and properties; Diodes in series and parallel; Main characteristics and use of silicon controlled rectifiers (thyristors), light emitting diode, photo conductive diode, varistor, rectifier diodes; Functional testing of diodes.
Transistor symbols; Component description and orientation; Transistor characteristics and properties.
4.1.3 Integrated Circuits
Description and operation of logic circuits and linear circuits/operational amplifiers
4.2 Printed Circuit Boards
Description and use of printed circuit boards.
Understanding of the following terms: Open and closed loop systems, feedback, follow up, analogue transducers;
Principles of operation and use of the following synchro system components/features: resolvers, differential, control and torque, transformers, inductance and capacitance transmitters.