Mini OSI-300 Parts List


The final tally of parts is:

  • 1x R6502 NMOS 6502 CPU
  • 1x 6264 8k x 8 SRAM
  • 4x 7417 Hex Open Collector Buffer
  • 1x 7402 Quad NOR Gate
  • 21x 3mm red LED
  • 23x 1N914/1N4148 diode
  • 1x 1N4001 diode
  • 1x 100 ohm 1/4W resistor
  • 34x 220 ohm 1/4W resistor (I used 1/8W)
  • 1x 2.2k ohm 1/4W resistor
  • 2x 4.7k ohm 1/4W resistor
  • 1x 100k ohm 1/4W resistor
  • 8x .1in (2.54mm lead spacing) .1uF capacitor
  • 1x .2in (5.08mm lead spacing) 10pf capacitor (G0P/NP0)
  • 1x 40pin socket (if desired, turned pin preferred)
  • 1x 28pin socket (if desired, turned pin preferred)
  • 5x 14pin socket (if desired, turned pin preferred)
  • 6x breakaway header, single male pin
  • 24x 4.3mm x 8.6mm SPDT switch (C&K OS102011MS2QN1 or Jameco SS12D02)
  • 1x 6.8mm x 8.6mm DPDT switch (C&K OS202011MS2QN1 or SS22D07)

The mini trainer requires a 5v 1Amp supply to operate, although it does run fine from four AA batteries.