Make a retro scientific calculator with LED display and mechanical keypad.
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05-13-2023, 03:56 PM
Post: #10
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RE: Make a retro scientific calculator with LED display and mechanical keypad.
(05-13-2023 03:03 PM)EdS2 Wrote: Aha - looks like quite a few manufacturers used that chip (Edit: but these are programmable, which is confusing me): It seems that the chip LI3301A is used for OEM manufacturers only. All SHARP calculators that use this chip are clones (fake). I bought many used calculators with this chip that have different suffixes, including 506P/506H/514. Also, I heard that this chip has a clone one which was made by a Vietnam company. |
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