Adler 60 (EC 60)

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Omron has been manufacturing pocket calculators since early 1973 with ICs manufactured in collaboration with Hitachi according to Omron’s own specifications. In addition to the eight-digit machines, encouraged by the success of Casio Mini, which was manufactured from the summer of 1972, they began designing a six-digit, low-cost calculator in addition to the 8-digit model with memory (81M). The Omron 60 hit store shelves at the same price as the competitor Mini. As a counterbalance of Its larger size, it has full floating decimal point — it was not possible to calculate with decimals with the Casio Mini. A successor has been made with smaller size and more modern display, the Omron 60N.

After the cooperation with an anglo-american partner, Germany-based Triumph-Adler company turned to japanese manufacturers for the OEM production of its new pocket and desktop calculators. Over the years, Omron has produced "European" versions of some machines with more or less modified design, so the Omron 60 has been redesigned, and sold as EC 60 model with Triumph or Adler branding. A newer version was given a larger display tube that required more components to drive, and its main switch was also reversed so that it could not be turned on accidentally while inserted into the case.