Instrument comprises of DC regulated power supply. Circuit diagram printed & components mounted on front panel. This  oscillator is intended for generation of high frequency signals like carrier wave signals in a communication system. This consists of a tank circuit made up of an inductor and a fixed capacitor shutted by a voltage variable capacitor network. Ideal for students to learn and understand how they can generate variable frequency using hartley oscillator. To study the frequency and wave shape generated by a hartley oscillator.