ELECTRON TUBES

Objective: Record the characteristic for a thermionic diode In a thermionic diode, free electrons carry a flow of current between the heated cathode and the anode when a positive voltage is applied between the cathode and anode. The current ... more

Objective: Record characteristics for a thermionic triode In a thermionic triode, free electrons carry a flow of current between the heated cathode and the anode when a positive voltage is applied between the cathode and anode. This current ... more

Objective: Demonstrate the straight-line propagation of electrons in the absence of any field Straight-line propagation of electrons in the absence of a field can be demonstrated in a Maltese-cross tube by showing how the shadow of the electron ... more

Objective: Demonstrate the straight-line propagation of electrons in the absence of any field Straight-line propagation of electrons in the absence of a field can be demonstrated in a Maltese-cross tube by showing how the shadow of the electron ... more

Objective: Determine the polarity of the charge-carriers In the Perrin tube, the electron beam can be deflected into a Faraday cup by applying a homogeneous magnetic field. The charge of the electrons can be observed by connecting an electroscope ... more

Objective: Investigate the deflection of electrons by electric and magnetic fields In a Thomson tube the vertical deflection of a horizontal electron beam can be observed on a fluorescent screen. Such a deflection can be generated by a vertical ... more

Objective: Determine the specific charge of an electron In the fine-beam tube, the path of electrons in a uniform magnetic field can be observed as a clearly delineated ray. This means that the radius of the circular path can be directly ... more

Objective: Study the physical principles of the time-resolved display of electrical signals using an oscilloscope The student oscilloscope can be used to study the physical principles of the time-resolved display of electrical signals on ... more

Objective: Demonstrate the superposition of magnetic fields in a vacuum The absence of interference when magnetic fields are superposed in a vacuum is demonstrated using a Braun tube. This is done by observing the displacements of the focused ... more

Objective: Determine the specific charge of an electron In the fine-beam tube, the path of electrons in a uniform magnetic field can be observed as a clearly delineated ray. This means that the radius of the circular path can be directly ... more