TEL-Atomic - Teltron Tubes

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PO Box 924, Jackson, MI 49204 1 (800) 622-2866

TELTRON TUBES (Original style tubes still available. Call for prices.)
"Franckly" speaking, a more illustrative experiment.
Now you can see at least 5 excitation levels in Helium or Neon gas.

USE THE OSCILLOSCOPE TO SEE DISTINCT AND DIFFERENT ENERGY LEVELS AS WELL AS IONIZATION IN HE OR NE GAS

TEL 2533 Hertz Tube Data Acquisition System
A variation of the Franck-Hertz experiment can be performed with the Hertz Critical Potentials Tube. With this tube a beam of electrons is emitted from a hot filament and is accelerated through He or Ne gas at low pressure. (The inside surface of the glass bulb is coated with a transparent conducting layer connected to the anode to create a field-free region.) When this beam reaches a certain critical energy, inelastic collisions occur between He or Ne electrons and the electron beam. The electrons in the beam then lose their

HERTZ TUBE IS AVAILABLE WITH
EITHER HE OR NE GAS

energy and are collected by a collector ring in the tube which is kept slightly positive with respect to the anode. As the electron beam continues to be accelerated, a higher critical energy is reached. At this higher energy inelastic collisions again occur between the He or Ne electron and the electron beam. Another peak will occur in the collector current. This second peak represents an energy level that is distinct and different from the first collision.

By monitoring the accelerating voltage vs. ring current 5 - 7 different and distinct energy levels plus the energy required for ionizations can be observed. (In contrast, the Franck-Hertz experiment allows you to determine only one energy level.)

THE HERTZ DATA ACQUISITION SYSTEM (Not exactly as pictured)

The Hertz Data Acquisition System includes a He filled Hertz tube, TEL-2533.02; Universal Stand, TEL-2501; an He filled Spectrum tube whose spectrum can be viewed with a Diffraction Grating Spectroscope. In addition the Hertz Console with power supply TEL-2812 is also provided. This convenient to use apparatus incorporates both a 0-60VDC ramped accelerating voltage output and a picoammeter to measure the ring current (which corresponds to the excitation levels). Both the accelerating voltage and ring current are available as signal outputs with a 1 volt FS deflection for easy and straight forward connection to a computer interface, digital storage oscilloscope, or chart recorder.

TEL-2533.02DAS Hertz Data Acquisition System with He tube

$ 2,265.00

A Ne filled tube can also be included in the system. The TEL-2533.10 is exactly like the He filled tube except it is filled with Ne. A Ne filled spectrum tube is also included.

THE HERTZ DATA ACQUISITION SYSTEMCAN BE USED WITH KIS OR MOST ANY COMPUTER INTERFACE

THE HERTZ DATA ACQUISITION SYSTEM CAN BE USED WITH MOST ANY COMPUTER INTERFACE ACCEPTING A BIPOLAR INPUT.

TEL-2533.102DAS Hertz Data Acquisition System with He and Ne tubes	$ 3,100.00
TEL-2533.02 (He Tube only)	$ 835.00
TEL-2533.10 (Ne Tube only)	$ 835.00
Filament Power Supply, such as the TEL GP4303D, is also needed.

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Need technical information or to place an order? TEL-Atomic 1-800-622-2866
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