Discrete Component Trainer (with Regulated Power Supply Lucidly illustrated User's manual unravels analog electronics concepts through brief theoretical reviews followed by experiments, self test questions and exercises. Modularly designed patch panel contains all commonly used discrete components. FEATURES :It consists of followinga) Power Supply of +5V, +12V, -12V each of 250 mA (nominal)b) Silicon, Germanium diodes, Zenersc) PNP & NPN Transistors, FETd) One speakerf) 12 different values of carbon film resistances & they are of w, w & 1 Watt.g) 12 assorted values of capacitors from 100 PF to 100 mF.h) Integrated Circuits (IC's), Thermistori) LED, LDR, Photo diode, solar cellj) Logic switches & LED indicators etc.