Physics Electronics System Set, 18 Pieces

Electronics systems kit allows to following:

Build a forward basis diode
Build a half wave rectifier
Build a Zener Diode
Using a transistor as a switch
Measuring power gain with a PNP power transistor
Infrared Diode and Phototransistor
Light Dependent Transistor
Temperature Dependent Resistors
Silicon Controled Rectifier
TRIAC - Thyristor

Contains the following pieces along with plastic case with lid:

Board for Electricity and Electronics 1
Si Diode 2
Zener Diode 1
Red LED Diode 1
Green LED Diode 1
Infrared (IR) Diode 1
Photoresistor 1
Light Dependent Resistor (LDR) 1
NTC Resistor 1
PTC Resistor 1
NPN signal transistor 1
PNP signal transistor 1
NPN power transistor 1
PNP power transistor 1
Silicon Controlled Resistor (SCR) 1
TRIAC 1
Unijunction transistor (UJT) 1