This electrostatic generator is capable; under dry atmospheric conditions; of producing sparks up to 80mm long. The revolving discs are 300mm in diameter. The neutralising bars are provided with replaceable tinsel tapes. The charge collectors are carried on a horizontal insulating beam and als...
We supply a comprehensive range of rheostats offering excellent value for money. They are wound with heavily oxidised resistance wire on a vitreous enamelled tube with the winding secured in place with a ceramic cement. The tube is supported on robust diecast end stands and the heavy duty sliding...
This Universal Stand is a tube holder made of robust plastic for holding D-series electron tubes. The stand has a wishbone; 360° rotating clamp made of heat-resistant plastic and two base holes for affixing the Teltron Helmholtz Coils D. The stand is on rubber feet to prevent it from slipping.<...
A pair of Helmholtz Coils for generating a uniform magnetic field perpendicular to the axis of the Teltron D series tubes. The Teltron Tube Holder D (B8A49463) allows the coils to be configured in the Helmholtz geometry or to produce magnetic fields aligned vertically; or coaxial; with respect to...
High-vacuum electron tube with thermionic cathode for demonstrating the thermoelectric effect (Edison effect). Use the tube to investigate the relationship between measured emission current and the voltage applied to the cathode. Also investigate the characteristics of diodes via the process of r...
High-vacuum electron tube with divergent electron gun aimed at a fluorescent screen partially obscured by a Maltese cross. For demonstrating the linear propagation of electrons in the absence of applied electromagnetic fields by projecting the shadow of a Maltese cross onto the fluorescent screen...
Highly evacuated electron tube with focusing electron gun and fluorescent screen inclined relative to the beam axis so that the path of the beam can be seen and the effects of electric and magnetic fields can be studied.
The electron beam can be deflected using two methods:
Highly evacuated electron tube with focusing electron gun and inclined fluorescent screen so the path of the beam can be seen and the effects of electric and magnetic fields can be studied. The electron beam can be deflected electrically in the electric field and magnetically by using the Helmho...
Part evacuated electron tube; filled with neon at low pressure with a tangential and axial electron gun. For determining specific charge e/m from the diameter of the filament beam in the case of tangential bombardment and a perpendicularly aligned magnetic field; and observing spiral paths of ele...
Highly evacuated electron tube for demonstrating the wave nature of electrons through the observation of interference caused by passage of electrons through a polycrystalline graphite lattice (Debye-Scherrer diffraction) and rendered visible on a fluorescent screen. Also intended for determining ...
The Mullard ZP1481 Geiger-Muller Tube is a halogen quenched metal tube with a thin end window. It is used for detecting alpha; beta and gamma radiation and is recommended as a general purpose tube for use with radioactive sources in schools. A removable protective mesh cap of plastic is fit...
Transistorised type with 100mm flying leads.
A miniature push button switch with a momentary push-to-make single pole action. Connections are by solder tags; and the switch may be mounted on a panel having a 7mm diameter hole via its threaded bush and nut.
Low voltage d.c. electric motor suitable for model making and similar applications. Has cylindrical body with either white metal or phosphor bronze bearings. Electrical connection is by solder tags on the rear end clips.
Low voltage d.c. electric motor suitable for model making and similar applications. Has cylindrical body with either white metal or phosphor bronze bearings. Electrical connection is by solder tags on the rear end clips. EACH.
For the examination of the spectral composition of light sources; radiant bodies; etc. The instrument gives a brilliant spectrum with a dispersion of approx. 11°. The slit is of fixed width and is protected by a glass cover plate. The eyepiece is mounted at the end of a draw tube and is adjust...
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