Author Topic: 2 unknown filiment bc bulbs  (Read 513 times)
sparky93
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2 unknown filiment bc bulbs « on: August 03, 2019, 03:07:28 AM » Author: sparky93
come accross these 2 bulbs in a box marked 1895.....
wonder if anyone knowns of these bulbs?
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Medved
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Re: 2 unknown filiment bc bulbs « Reply #1 on: August 10, 2019, 01:43:15 AM » Author: Medved
The first look more like some glow discharge lamp (the thick wires are the electrodes), the second one looks like a heavily aged Neon glow discharge lamp or some electronic component (glow discharge voltage regulator; these are "stabilized" after mnufacture and that uses to deposit a lot of sputtered material on the bulb - no problem when the light output is not the main function of the thing; these used to use common lightbulb sockets).
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