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![Triode D, Helium-filled, 1000653 [U19157], Electron Tubes D (Small)](/thumblibrary/U19157/U19157_03_50_50_Triode-D-Helium-filled.jpg)
Electron tube filled with low-pressure helium gas, and containing a thermionic cathode, control grid, and anode. This tube is for quantitative investigations of the typical properties of a gas-immersed triode, recording the current-potential (IA-UA) characteristics of a thyratron, and observing discharges and discontinuous energy release of helium atoms during inelastic collisions with free electrons.
| Weight | 0.58 kg |
| Dimensions | 35.1 x 29.2 x 23.1 cm |
| Brand | 3B Scientific Teltron |
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