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GEC 60W SLI/H linear sodium lamp in various stages of warm up. The purple colour is from the neon-argon-xenon fill gas, the yellow is from sodium Stock Photo - Alamy
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GENERAL ELECTRIC AR-1 Argon Glow Discharge Lamp
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Neon lamp - Wikipedia
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Argon - Wikipedia
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Neon and Argon Glow Lamps - How they work & History
New Old Stock - Vintage GE Neon Argon Glow Lamp - Purple - Green Mountain Camera
Philips LL Spectral Argon
Argon Calibration Lamp AssemblySCL101-Ar - m-oem
