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Wamco KW105S numeric 'Minitron'-style incandescent display, in used tested condition. The KW105 is rated for 100,000 hours at 5VDC, and will probably last much longer at lower voltages. Commonly used in vintage test equipment, the KW105 uses an array of heated lightbulb filaments to display numbers and letters, which have been shoehorned into a tiny rectangular DIP-style envelope. All segments test good; these are getting rather hard to find, and would be a good addition to a tube or display collection or to build a 'nixie' style clock or watch.
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