The Alpha Electronics Kits have been designed to incorporate electronic applications into Physics lessons. The various boards offer versatility and cover a wide range of topics. Both student and teacher notes are included. Each kit is suitable for one student or lab group working from the student notes.The Alpha GCSE Physics student kit (for one working group) has been designed to cover the common electronic content of all GCSE syllabuses. All stored in a Gratnells tray with lid.Topics covered are the potential divider characteristics of light - dependent resistor and thermistor transistor as a switch and as a current gain device logic gates (AND OR and NOT). The use of sensing devices to control an output device provides an opportunity to apply their understanding of signals and simple signal processing including conversion of a gradual analogue change into a digital on/off signal for use in logic systems.The kit contents include:1 x Alpha Power Supply Regulator Board1 x Comparator1 x Inverter1 x Two Input OR Gate1 x Two Input AND Gate1 x Transistor Switch/Indicator1 x Diode Unit1 x Temperature Sensing Unit1 x Rain Sensing Unit2 x Switch Unit1 x Light Sensing Unit1 x Input Voltage Unit1 x 100k Potentiometer1 x Power Link Board1 x Alphalink (Brown)5 x Alphalink (Yellow)1 x Buzzer Unit1 x Bulb UnitPLEASE NOTE: To power the system the Alpha Power Supply Regulator Board is included. This takes 8 to 12V d.c. or a.c. from any bench power supply and converts it to a regulated 5V d.c. with a centre tap at 2.5V. It limits the current supplied to an Alpha circuit to 0.5A. It is the ideal way to power Alpha virtually eliminating risks of accidental overload and incorrect polarity.