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azevedo devices on Twitter: "Testing a 14-segment bubble LED display HPDL-2416. I remember having a calculator with a 7-segment bubble display, but alphanumeric is way better! https://t.co/NcSPnl5UzJ" / X
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National Semiconductor - A5120 - Vintage 12-Digit LED Array Bubble Display - Rare First Generation, Gold Plated
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VQB37 - NOS vintage RFT red 7 Segment Miniature bubble LED Display | eBay | Bubbles, Display, Miniatures
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