bom.txt

Ref     Part                                            Distributor SKU
----------------------------------------------------------------------------------------------------------
C1-C10  0.1uF decoupling capacitor (ceramic/monolithic)
C11,C12 10uF electrolytic capacitor, 16V+
D1-D2   1N5817 Schottky diode (1N4148 also works)
D3-D6   5mm LED (your choice of color)
J1      USB-B PCB-mount right-angle connector           Jameco 2096245
J2      6-position 0.1" male right-angle header
J3      (optional) 7-position 0.1" header
J4      2x22 2mm header
JP1     3-position 0.1" male straight header + jumper
R1,R2   10k resistor, 1/4W
R3      1k resistor, 1/4W
R4-R7   Resistors for LEDs D3-D6 (330/1k)
RN1     10k bussed resistor network (SIP-7)
SW1,SW2 6mm tactile switch
U1      74HC139 dual 2-to-4 line decoder (DIP-16)
U2      74HC14 hex inverting Schmitt trigger (DIP-14)
U3      68000 microprocessor (DIP-64)                   Jameco 2288039
U4,U6   AS6C4008-55PCN 512Kx8 static RAM (DIP-32)       Jameco 242448           Mouser 913-AS6C4008-55PCN
U5,U7   AT28C256 32Kx8 EEPROM (DIP-28)                  Jameco 74843            Mouser 556-AT28C25615PU
U8      TL16C550 UART (DIP-40)                          Jameco 288809
X1      5V oscillator (DIP-8 or DIP-14)

Optional peripherals
--------------------
Low profile ZIF-28 sockets for U5/U7 - Jameco 102745 (Aries 28-526-10)
SparkFun DeadOn RTC Breakout - https://www.sparkfun.com/products/10160
CompactFlash to 2.5" 44-pin IDE adapter - https://www.amazon.com/gp/product/B07Y2MTS13