High-vacuum electron tube with high-accuracy electron gun and ruled target phosphorescent screen. Determine the fundamental electron charge-to-mass ratio (e/m), study mean electron velocities using field cancellation, and explore electron optics using this tube.

Thomson Tube S

3B Scientific

$2,822.40
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SKU:
005-1000617
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High-vacuum electron tube with high-accuracy electron gun and ruled target phosphorescent screen. Determine the fundamental electron charge-to-mass ratio (e/m), study mean electron velocities using field cancellation, and explore electron optics using this tube. The electron beam trajectory can be manipulated using two methods: 1) deflection induced by the electric field of the built-in plate capacitor, or 2) magnetically using external Helmholtz Coils S (see Recommended).


Specifications
Max. filament voltage: 6.3 V AC
Max. anode voltage: 5 kV
Max. capacitor voltage: 500 V
Anode current: approx. 0.1 mA at 4 kV (anode)
.008m between tick marks on screen
 
Weight 0.71 kg
Dimensions 35.1 x 28.2 x 22.1 cm
Brand 3B Scientific Teltron
 
Tube holder to support all S series (student) electron tubes for easy and safe operation. The five pin sockets for the tube are concealed inside the tube holder. A cathode protection switch is integrated into the tube holder, to protect the heated cathode from excessive voltage. The base plate has a slot for attaching the students’ Helmholtz coil pair 1000611 (U185051).

Tube Holder S

005-1014525

$1,550.85
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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.

Perrin Tube S

005-1000616

$1,800.75
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Part evacuated electron tube, filled with neon at low pressure, with 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 electrons in the case of axial bombardment and a co-axial magnetic field.

Dual Beam Tube S

005-1000622

$2,385.08
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Manometer for measuring pressures in the range 0 to 10 hPa (cm water column). U-tube open on both sides with overflow basin on aluminium base plate with scale.

U-Tube Manometer S

005-1000792

$176.40
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