Franck-Hertz Tube with Mercury Filling and Heating Chamber
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Franck-Hertz Tube with Mercury Filling and Heating Chamber

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£1,258.66  exc. VAT    
(£1,510.39 Inc. VAT)

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Power Supply Unit for Franck-Hertz ExperimentPower Supply Unit for Franck-Hertz Experiment
Franck-Hertz Tube with Neon FillingFranck-Hertz Tube with Neon Filling
  • Highly evacuated electron tube containing mercury
  • Heating chamber included
  • For use in Franck-Hertz Experiment
  • Demonstrates quantisation of atomic energy levels
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Franck-Hertz Tube with Neon Filling

Franck-Hertz Tube with Neon Filling

£503.65
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  • Highly evacuated electron tube containing neon
  • For use in Franck-Hertz Experiment
  • Mounted on base
  • Colour coded connection sockets

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 

Replacement Tube for Franck-Hertz Experiment

Replacement Tube for Franck-Hertz Experiment

£327.14  -  £381.64
Add to Basket
 
  • Replacement tube for use in Franck-Hertz Experiment
  • Choose between tube for mercury or neon filling
  • Ideal for use in schools to replace broken or old parts
  • For use with existing Tube with Neon or Mercury Filling appartus

franck-hertz tube with mercury filling and heating chamber

This product consists of a highly evacuated electron tube containing mercury, along with a heating chamber. It is used for demonstrating the discrete nature, or quantisation, of the energy released by free electrons in collisions with mercury atoms. The Franck-Hertz Tube with Mercury Filling and Heating Chamber can also be used to determine the excitation energy of the mercury resonance line (61S0 – 63P1), which is 4.9 eV. 

Featuring lacquered metal housing with two observation windows, an opening with spring clip for thermometer and a thermally insulated carrying handle, this is a top-of-the-range, user-friendly product.

The Franck-Hertz Tube with Mercury Filling 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.

This Franck-Hertz Electron Tube is heated in the chamber, generating the necessary mercury vapour pressure to achieve a sufficiently high probability of collisions between electrons and mercury atoms.

The electron tube has a plane parallel lectrode system consisting of an indirectly heated oxide cathode with aperture, a grid and a collecting electrode. The front plate with the printed tube symbol is visible from a distance.

The electric heating chamber features continuous temperature control and digital temperature display, which shows the actual and set-point temperatures. Temperature measurement and control is handled by an integrated microcontroller and a Pt100 thermocouple.

required Equipment

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

or

Technical Specification

  • Heater voltage: 4 − 12V
  • Grid voltage: 0 − 70V
  • Suppressor voltage: approx. 1.5V
  • Tube diameter: approx. 130 x 26mm
  • Heater output: 400W
  • Temperature range: 160 − 240°C
  • Temperature constancy: approx. ±1°C 
  • Overall dimensions: approx. 335 x 180 x 165mm³ 
  • Weight: approx. 5.6kg

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 Neon Filling

Franck-Hertz Tube with Neon Filling
£503.65
Add to Basket
 
  • Highly evacuated electron tube containing neon
  • For use in Franck-Hertz Experiment
  • Mounted on base
  • Colour coded connection sockets

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 

Replacement Tube for Franck-Hertz Experiment

Replacement Tube for Franck-Hertz Experiment
£327.14  -  £381.64
Add to Basket
 
  • Replacement tube for use in Franck-Hertz Experiment
  • Choose between tube for mercury or neon filling
  • Ideal for use in schools to replace broken or old parts
  • For use with existing Tube with Neon or Mercury Filling appartus
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