Franck-Hertz Tube with Neon Filling
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Franck-Hertz Tube with Neon Filling

£503.65  exc. VAT    
(£604.38 Inc. VAT)

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Franck-Hertz Tube with Mercury Filling and Heating ChamberFranck-Hertz Tube with Mercury Filling and Heating Chamber
Power Supply Unit for Franck-Hertz ExperimentPower Supply Unit for Franck-Hertz Experiment
  • Highly evacuated electron tube containing neon
  • For use in Franck-Hertz Experiment
  • Mounted on base
  • Colour coded connection sockets
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Franck-Hertz Tube with Mercury Filling and Heating Chamber

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  • Highly evacuated electron tube containing mercury
  • Heating chamber included
  • For use in Franck-Hertz Experiment
  • Demonstrates quantisation of atomic energy levels

Power Supply Unit for Franck-Hertz Experiment

Power Supply Unit for Franck-Hertz Experiment

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  • Provides voltage needed to power tubes in Franck-Hertz Experiment
  • Sensitive built-in DC amplifier
  • Accelerating voltage can be set manually or set to saw-tooth wave form
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franck-hertz tube with neon filling

This product is a highly evacuated electron tube containing neon, for use in the Franck-Hertz Experiment. Mounted on a base and with colour coded connection sockets, the Franck-Hertz Tube with Neon Filling is both sturdy and user-friendly. 

The Franck-Hertz Neon Tube can be operated at room temperature and is for use in conjunction with other equipment available at Lab World. The Franck-Hertz Experiment is included in most curricula, therefore this product makes a great addition to any classroom lab.  

Franck-Hertz Experiment

This well known experiment, first performed by James Franck and Gustav Hertz in 1914, is critically important in terms of demonstrating discrete energy states in atoms. It provides strong confirmation of the idea of quantised atomic energy levels.

The Franck-Hertz Tube with Neon Filling is used to demonstrate that free electrons colliding with neon atoms emit energy in quantised packets, and the excitation energy of the 3P0 or 3S1 states at about 19eV.

When excited, these states emit visible light due to the energy drop from intermediate levels to a ground state at an excitation energy of about 16.7eV. The light so emitted is in the red-yellow region of the spectrum. Parallel bands of light are formed between the control grid and the accelerator grid and can be observed through a window. 

This item features a tetrode with an indirectly heated cathode, a mesh control grid, mesh accelerating grid and collector (counter) electrode. 

Additionally required

When using this product, you will also require the following:

or

Technical Specification

  • Filament voltage: 4 − 12V
  • Control voltage: 9V
  • Accelerating voltage: max. 80V
  • Counter voltage: 1.2 − 10V
  • Tube diameter: approx. 130 x 26mm 
  • Base with connector sockets: approx. 190 x 115 x 115mm³ 
  • Weight: approx. 450g 

Do you have a question about this product or would like to purchase it? No problem at all. Simply call us on 020 7720 2266 between 09:00 and 17:00 Monday to Friday. 

You can also email us with your question by using the form below. A member of the Lab World Customer Care Team will respond to your enquiry personally as soon as they can.

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Related Products

Franck-Hertz Tube with Mercury Filling and Heating Chamber

Franck-Hertz Tube with Mercury Filling and Heating Chamber
£1,258.66
Add to Basket
 
  • Highly evacuated electron tube containing mercury
  • Heating chamber included
  • For use in Franck-Hertz Experiment
  • Demonstrates quantisation of atomic energy levels

Power Supply Unit for Franck-Hertz Experiment

Power Supply Unit for Franck-Hertz Experiment
£1,042.36
Add to Basket
 
  • Provides voltage needed to power tubes in Franck-Hertz Experiment
  • Sensitive built-in DC amplifier
  • Accelerating voltage can be set manually or set to saw-tooth wave form
  • Additional measuring inputs available 
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