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File:Vintage Rockwell 24K (the 24K) Electronic Handheld Calculator With VFD (Vacuum Fluorescent Display), Made In Taiwan, Circa 1975 (28963046973).jpg - Wikimedia Commons
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Electronic Calculators—Desktop -- Vacuum Tubes to Transistors—From the Anita Mark VIII to Hewlett Packard and Wang | National Museum of American History
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Calculator /pompa vacuum vw golf, bora, leon, octavia, polo, skoda fabia, seat ibiza TDI #cEGlF_04JZH
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I just bought this vintage nixie tube calculator for 50 bucks, beautiful piece of electronic engineering : r/electronics
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BRAUN Control ET 22 Type 4 955 with Yellow VFD display vintage calculator / rechner | Type 4, Display, Vacuum
![Elka 50 // Desk Calculator - with vacuum-fluorescent tube display // Bulgaria 1974 #technology #technology JACB 🇪🇸 🇺🇦🌻🎭🎥 😷 📸🎶🎸 @hispalense1981 Elka 50 // Desk Calculator - with vacuum-fluorescent tube display // Bulgaria 1974 #technology #technology JACB 🇪🇸 🇺🇦🌻🎭🎥 😷 📸🎶🎸 @hispalense1981](https://pbs.twimg.com/media/Fad-GVxXgAEgX-F.jpg)