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HE1007002HE1007002
Rheostat: Standard Range - 2.3A 55 Ohm Pack of 1 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 co...
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HE1007003HE1007003
Rheostat: Standard Range - 4A 16 Ohm Pack of 1 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 co...
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HE1007004HE1007004
Rheostat: Standard Range - 5A 8.5 Ohm Pack of 1 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 co...
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HE1007005HE1007005
Rheostat: Standard Range - 3.2A Pack of 1 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 co...
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HE1007006HE1007006
3B Scientific Universal Stand (Teltron Tubes) Pack of 1 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.Spec...
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HE1007007HE1007007
3B Scientific Helmholtz Coils - Pair Pack of 1 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 th...
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HE1007008HE1007008
3B Scientific Teltron Tube - Planar Diode Pack of 1 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 rect...
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HE1007009HE1007009
3B Scientific Teltron Tube - Maltese Cross Pack of 1 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. A...
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HE1007010HE1007010
3B Scientific Teltron Tube - Perrin Pack of 1 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:Electrically - using the e...
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HE1007011HE1007011
3B Scientific Teltron Tube - Deflection e/m Pack of 1 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 Helmholtz...
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HE1007012HE1007012
3B Scientific Teltron Tube - Dual Fine Beam - Gas Filled Pack of 1 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 electr...
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HE1007013HE1007013
3B Scientific Teltron Tube - Electron Diffraction Pack of 1 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...
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HE1007015HE1007015
Geiger-Muller Tube - Mullard ZP1481 Pack of 1 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 fitted...
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HE1007187HE1007187
Electronic Buzzer 6V D.C. Pack of 1 Transistorised type with 100mm flying leads.Frequency: 420Hz approx.Current: 17mA max.Output: 83dB at 0.2mDimensions: 23 x 17 x 15mm
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HE1007188HE1007188
Economy Push Button Switch - Pack of 5 Pack of 1 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.Maximum Rating: 250V a.c. 0.5AButton Diameter: 6mmDimensions: (L)28mm x (D)10mm Pack of ...
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HE1007190HE1007190
Electric Motor - 1.5 - 3V Pack of 1 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. Voltage range: 1.5 - 3VTorque g/cm: 10.5Dimensions: (L)26mm x (D)20mmShaft Diam...
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HE1007191HE1007191
Electric Motor - 3 - 6V Pack of 1 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.Voltage Range: 3-6VTorque g/cm: 26.5Dimensions: (L)31mm x (D)24mmShaft Dia...
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HE1007808HE1007808
Philip Harris Diffraction Spectroscope - Pocket Pack of 1 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 adjustabl...
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HE1007857HE1007857
Philip Harris Long Trolley Runway Pack of 1 Designed to provide a smooth flat easily inclinable surface for dynamics experiments using trolleys.With metal side rails and plastic feet.Dimensions: 2.4M x 0.3MAssociated Products:Dynamics Trolley (Wooden) - B8A42006Dynamics Trolley (Metal) - B8R05959An alternative ramp size is also available (B...
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HE1007858HE1007858
Philip Harris Short Trolley Runway Pack of 1 This is similar to the standard runway but at only 1.5M long is more convenient where storage space is limited.Dimensions: 1.5M x 0.3M.Associated Products:Dynamics Trolley (Wooden) - B8A42006Dynamics Trolley (Metal) - B8R05959An alternative ramp size is also available (B8A84773).
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