3B Scientific Teltron Tube - Dual Fine Beam - Gas Filled
HE1007012
1
In stock
Your Price:£934.95exc VAT
Description
Specifications
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 electrons in the case of axial bombardment and a co‐axial magnetic field
The electron paths are rendered visible in the form of fine luminescent beams through impact excitation of the neon atoms
The Dual Fine Beam tube is neon filled and electron beams may be observed throughout the full length of their travel within the tube, an orange glow being emitted during the gas/electron collisions
The tangential beam can be deflected by the use of Helmholtz Coils (B8A49475) to produce a completely circular path permitting e/m measurements to be made
Clear free path studies may be made and phenomena such as screen blanking due to charge build up on the screen my be observed
Within the tube are mounted two electron guns with indirectly hated cathodes, with one gun pointing along the axis of the tube, while the other is tangential to the axis, either gun being selected by a switch on the cylinder cap
The angle of projection from the guns is adjustable by means of miniature deflection plates near the gun outlets, a small potential being applied via 4mm connections at the side of the cylindrical neck
The end of the body has a phosphor coated screen for use with the axial gun
Technical Specifications:Maximum filament voltage: 7.5 V AC/DC
Anode voltage: 120‐300V DC
Maximum anode current: 30 mA
Maximum deflection voltage: 50 V DCDimensions:Glass bulb: approx.130 mm diameter
Total length: approx.260 mmPlease contact techsupport@philipharris
co
uk for additional equipment required to operate the Teltron Tube
