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555854 Franck - Hertz TubeFranck Hertz Tube For demonstrating the discontinuous release of energy by free electrons upon collision with mercury atoms, and for determining their excitation energy. The Franck Hertz curve is plotted either point by point with indicating instruments or continuously by means of a recorder or CASSY. Vacuum tube with indirectly heated cathode, emission control grid, anode grid, collector and a mercury drop which vaporizes when the tube is heated.
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Franck - Hertz Tube
For demonstrating the discontinuous release of energy by free electrons upon collision with mercury atoms, and for determining their excitation energy. The Franck-Hertz curve is plotted either point-by-point with indicating instruments or continuously by means of a recorder or CASSY.
Vacuum tube with indirectly heated cathode, emission control grid, anode grid, collector and a mercury drop which vaporizes when the tube is heated.
Please note: the Franck-Hertz tube (555 854) can only be used in conjunction with the corresponding sockets (555 864/555 865). It is not possible to run it on the socket for the old Franck-Hertz tube (555 85, no longer available).
Technical Data:
- Filament: 3.15 V/0.4 A
- Grid voltages:
Emission grid: 0 - 4 V DC
Anode grid 0 - 40 V DC - Counter-voltage at collector: approx. 1.5 V DC
- Socket: 8-pin socket
- Mercury filling approx. 5 g
- Excitation energy of the Hg atoms 4.9 eV
- Operating temperature: approx. 200 °C
- Dimensions: 10 cm x 2.8 cm diam.
INSTRUCTIONS FOR USE PLEASE CLICK HERE
555854 Franck - Hertz Tube
Item no
:
54239549488
US$ 2392.50
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1piece
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