Anita MK8 vintage electronic desktop calculator demonstration

(I'm sorry, when I say formally tubes I mean mostly tubes) This is the Anita MK8 calculator, known as the first electronic calculator in the world. It can add, subtract, multiply and divide. The machine is restored into a working condition. About 200 resistors, 80 capacitors a few diodes and a few tubes were replaced. The keyboard was completely disassembled to clean and lubricate. All rotary switches were also cleaned (one behind every key). Also the nixies were repainted because the original paint was partly disappeared. The machine uses approx 175 trigger tubes: XC27 or XC31, Z700U, Z700W. It uses 10x 12AT7, a GS10D and a GTR120W. And for the display there are 12x ZM1080 nixie tubes. Many thanks to a very kind former Anita technician for the machine and a lot of information about these machines!

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2014/08/07 proxxima038   Share on Facebook

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