From a photo of Rev. 0 board 1070 (A2S1-0800), near locations B5 and B8.SN74LS174N, 7738K date code. Rounded notch.Total # on board: 2.
Parts for my Rev 0 replica.SN74LS174N, 7802DKP and AZ7637 date codes. Rounded notch on AMD IC. NOS.