Unpack the kit carefully and ensure that no components are concealed within the packing materials.
| PCB | Printed Circuit Card | 200,000 issue 3 or later |
| IC1 | 6502 micro processor | and 40 pin socket |
| IC2 | INS 8154 RAM/IO | " |
| IC3 | 2114 RAM | and 18 pin socket |
| IC4 | 2114 RAM | " |
| IC5 | Not supplied | |
| IC6 | Not supplied | |
| IC7 | OS ROM | and 24 pin socket |
| IC8 | INS 8154 RAM I/O not supplied | but 40 pin socket is |
| IC9 | 74LS20 | and 14 pin socket |
| IC1O | 74LS139 | and 16 pin socket |
| IC11 | 74LS04 | and 14 pin socket |
| IC12 | 74LS00 | and 14 pin socket |
| XTAL | 1MHz crystal | |
| R1-4 | 4 off 4K7 resistor | |
| Cl-2 | 47 or 100 nF capacitor | |
| C5-8 | " | |
| C9 | 15 uF electrolytic capacitor |
NB: C3, C4, C10, IC5, IC6, and IC13 are not fitted. IC8 is available as an accessory.
| PCB | Printed Circuit Card | 200,001 issue 2 or later |
| IC1 | CD4024B | and 14 pin socket |
| IC2 | CD4024B | " |
| IC3 | CD4011B | " |
| IC4 | CD4013B | " |
| IC5 | CD4001B | " |
| IC6 | CD4024B | " |
| IC7 | LM358 | and 8 pin socket |
| R1 | 3K9 resistor | |
| R2 | 47K resistor | |
| R3 | 4K7 resistor | |
| R4 | 1K resistor | |
| RS | 10K resistor | |
| R6 | 4K7 resistor | |
| R7 | 4K7 resistor | |
| R8 | 47K resistor | |
| R9 | 4K7 resistor | |
| R10 | 4K7 resistor | |
| R11 | 10K resistor | |
| R12 | 47K resistor | |
| R13 | 4K7 resistor | |
| R14 | 470K resistor | |
| R15 | 4K7 resistor | |
| R16 | 4K7 resistor | |
| C1 | 100pF capacitor | |
| C2 | 1nF capacitor | |
| C3 | 10nF capacitor | |
| C4 | 1nF capacitor | |
| C5 | 15uF electrolytic capacitor | |
| C6 | 47 or 100 nF capacitor | |
| C7 | Not fitted | |
| C8 | 22nF capacitor | |
| C9 | 47 or 100 nF capacitor | |
| C10 | 47 or 100 nF capacitor |
| PCB | Acorn Computers Ltd. pt no 200,002 | |
| IC1 | 74LS139 decoder | and 16 pin socket |
| IC2 | 74LS02 NOR gate | and 14 pin socket |
| IC3 | 74LS13 Schmitt trigger | and 14 pin socket |
| IC4 | MC6845 C.R.T. controller | and 40 pin socket |
| IC5, 6 & 7 | 74LS157 data selector | and 16 pin socket |
| IC8 & 9 | 2114-3 R.A.M. | and 18 pin socket |
| IC1O | 74LS174 hex flip-flop | and 16 pin socket |
| IC11 | INS 8208 buffer | and 20 pin socket |
| IC12 | 74LS86 excl. OR gate | and 14 pin socket |
| IC13 | SAA5050 character generator | and 28 pin socket |
| IC14 | 74LS00 NAND gate | and 14 pin socket |
| Q1 | BC107 transistor | |
| D1 | 1N4148 diode | |
| R1 | 1K resistor | |
| R2 | 1K resistor | |
| R3 | 3470 R preset potentiometer | |
| R4 | 10K resistor | |
| R5 | 4K7 resistor not supplied | |
| R6 | 22K resistor | |
| R7 | 4K7 resistor | |
| R8 | 10K resistor | |
| R9-12 | 4 off 10K resistors | |
| R13 | 4K7 resistor | |
| R14 | 10K resistor | |
| R15 | 470R resistor | |
| R16 | 82R resistor | |
| R17 | 18K resistor not supplied | |
| R18 | 10K resistor | |
| R19 | 10K resistor not supplied | |
| R20-22 | 3 off 10K resistors | |
| Cl | 10 or 15 uF electrolytic capacitor | |
| C2-7 | 6 off 47 nF capacitors | |
| C8 | 100 pF capacitor | |
| C9 | 150 pF capacitor |
NB: For IC11, INS208 is equivalent to DP8304
| PCB | Printed Circuit Card | 200,003 issue 2 of later |
| IC3-10 | 2114 RAM | and 18 pin socket |
| IC1, 2, 11-16 | 18 pin sockets supplied for extension RAM | |
| IC17 | BASIC ROM and 24 pin socket | |
| IC18 | 24 pin socket supplied for extension ROM | |
| IC19 | 74LS42 and 16 pin socket | |
| IC20 | 74LS00 and 14 pin socket | |
| IC21 | 81LS95 or 97 and 20 pin socket | |
| IC22 | INS8208 and 20 pin socket | |
| IC23 | 81LS95 or 97 and 20 pin socket | |
| IC24 | 74L42 and 16 pin socket | |
| IC25 | 74LS00 and 14 pin socket | |
| R1 | 1K resistor | |
| C1-7 | 7 off 47 or 100 nF capacitors | |
| C8 | 15uF electrolytic capacitor |
NB IC24 is a 74L42 from National Semiconductor only
Also supplied for system 2 is
| 1 off Card Frame | 173-12501L |
| 4 off 64 way plugs | 17-3704L |
| 4 off 64 way sockets | 17-3705F |
| 8 off card guides | 173-12553G |
| 1 off Back-plane PCB | 200,011 |
| Earthwire and solder tag | |
| 16 off 2.5 mm x 10 mm screws | |
| 8 off 2.5 mm nuts |