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If Curiously, I received a new batch of TI SN74LS02s that work with uIDE-8, so perhaps you should try any you have in your parts box first. However, if in doubt, choose a '''74F02''' or known working type shown above. If you find working types that are not listed, or are shown as not compatible, please let me know so I can update the list.
As a result of this investigation, the BOM was updates to specify a '''74F02''' for U2.
