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Common Detailed Techniques For Electron Tubes Or Discharge Tubes
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Abstract
Lampholder, characterized essentially by the fact that it consists of a tubular insulating body, with one end closed and the other open, provided with an internal annular projection as a step, inside of which tubular body is housed a helical conductor spring, supported against the internal wall, with one end resting against the internal step and the opposite end having an extension fixed inside a metal bushing mounted on the closed face of the tubular body, the bushing of which protrudes to the outside and constitutes a cable connection terminal. Corresponding, while in the center of the cover is fixed another similar metal cap, which externally constitutes the second terminal and internally the contact for the base of the bulb. (Machine-translation by Google Translate, not legally binding)