Breckland Scientific 2021 Catalogue

Teltron Tubes

Teltron Tubes

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1 TELTRON DIFFRACTION TUBE Highly evacuated electron tube for demonstrating the wave nature of electrons through the observation of in- terference 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 wavelength as a function of the anode voltage from the radii of the diffraction rings and the lattice plane spacing of graphite, as well as confirming de Broglie’s hypothesis. Specifications: • Max. filament voltage: 6.3 V AC • Max. anode voltage: 5 kV • Anode current: approx. 0.1 mA at 4 kV Cat No. Description Price Per TTT-100-100 Teltron Diffraction Tube 788.64 ea. 2 TELTRON DEFLECTION TUBE 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 electri- cally in the electric field of the built-in plate capacitor, and magnetically by using the Helmholtz coils. By adjusting the electric field so that it cancels the magnetic deflection, it is possible to determine the specific charge e/m and the velocity of the electrons. Specifications: 3 TELTRON MALTESE CROSS TUBE 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. Application of a magnetic field using the Helmholtz Coils allows students to study the fundamental science of electron optics, such as beam focusing. Specifications • Max. filament voltage: 6.3 V AC • Max. anode voltage: 5 kV • vAnode current: approx. 0.1 mA at 4 kV Cat No. Description Price Per TTT-250-100 Teltron Maltese Cross Tube 544.06 ea. 4 PSU BASE MAX SERIES EHT POWER SUPPLY Ideal for powering Teltron Tubes. • Up to 6kV output • Tapped sockets to give 3kV - 0 - 3kV continuously variable output • LED digital display. The EHT circuits are • Fully floating EHT circuits - positive or negative may be connected to earth • Current limited to 2mA for safety • Extra safe pair of sockets protected by large value resistors. • 2 x 6.3V AC, 2A heater output sockets. Cat No. Description Price Per POW-450-100 Max Series EHT Power Supply 289.90 ea. • Filament voltage: 6.3 V AC • Max. anode voltage: 5000 V • Anode current: approx. 0.1 mA at 4000 V • Max. capacitor voltage: 5000 V • Fluorescent screen: approx. 90 x 60mm Cat No. Description Price Per TTT-150-100 Teltron Deflection Tube 706.80 ea. TTT-150-150 Helmholtz Coils 324.57 pr

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Teltron Diffraction Tube

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Teltron Deflection Tube

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Teltron Maltese Cross Tube

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EHT LEADS 5kV lead 500mm long in black or red. Cat No. Description

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ELL-250-100 EHT Lead Black

5.67 ea.

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ELL-250-150 EHT Lead Red

5.67 ea.

PSU Base EHT Power Supply

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438

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