C1 2.2nF C2-4 100nF (3 off) C5-14 1uF 35v (10 off) C15 220pF C16-36 100nF (21 off) C37 33uF 25v Tantulum D1-9 3mm LED (9 off) D10-12 1N4148 (3 off) EC1 DIN41612 2x32 way (a+b) R/A Plug JP1-3 2 way JUMPER (3 off) P1-4 2x7 pin IDC PCB Header (4 off) P5 5 pin 180_DIN PCB Socket P6 14 pin DIL Socket P7 2x5 pin IDC PCB Header Q1 BC547 R1-2 4k7 (2 off) R3 10k R4 1k R5 100k R6-8 1k (3 off) R9-10 22k (2 off) R11 1k R12 10k R13 4k7 R14 1k R15 68 R16 1M0 * see note 1 RR1 4k7 RR2 470 SW1 DIPS_08 SW2 DIPS_02 TH1-2 PTC FUSE (Polyswitch) 1.1A Hold current, 30v (2 off) U1 74LS04 U2 74LS138 U3 GAL16V8 U4 74LS682N U5 74LS32 U6 74LS138 U7 GAL16V8 U8 74LS138 U9 74LS175 U10 74LS21 U11 74LS139 U12 74LS30 U13 TMS27C512 U14 TMS27C512 (2nd EPROM option) U15 AS6C1008 U16 74LS00 U17 74LS74 U18 LM358 U19 R6522 U20 R6522 (2nd VIA option) U21 R6551 * see note 1 (Serial option) U22 74LS244 U23 74LS244 U24 2716 U25 74LS157 (Serial option) U26 74HCT4053 (Serial option) U27-28 MAX232 (Serial option) X1 1.8432Mhz Crystal (Serial option) IC Sockets 8 way 1 off 14 way 7 (inc P6 above) 16 way 9 off 20 way 5 off 24 way 1 off 28 way 3 off 32 way 1 off 40 way 2 off * Notes 1 R16 is fitted if U21 is the CMOS equivalent 65C51. R16 is not required if U21 is an original 6551. R16 was introduced in Tanex-Plus PCB design v1.0b.