Romantic Robot Multiface 128 Recreation BOM R1,R2 1K C1-12 100nf Tantalum S1/2 Tact Switch (Choose Option Horiz/Vert) IC1 74S260N IC2 74LS30 IC3 74LS27 IC4/7 74LS74 IC5/10 74LS00 IC8 74LS125 U1 27C64 EPROM U2 6264 SRAM P1 Spectrum Edge Connector 28x2 (Key on pos. 5) D1 1N4001 (Optional if through connecter fitted)