Parts List for Optoisolated Stepper Controller

(1) PC Board:  CW Technology PCSTEP-PCB ($11) or make.
(1) U2 UCN5804B Stepper Controller IC:  CW Technology ($7) or Pure Unobtanium
(4) D1-4 3A/40V Schottky Diodes: CW Technology PCSTEP-D1 (4 - $5) or Digi-Key
    31DQ04-ND
(1) U1 Quad Optoisolator: CW Technology PCSTEP-U1 ($3) or Mouser 551-PS2501-4
(1) U3 78L05 5V Regulator: various
(4) R1-4 470 ohm, 1/4W resistors: various
(4) C1-4 1000 pF, 50V Axial ceramic capacitors: Mouser 140-CA50P102K
(2) C5,8 0.1 uF, 63V Monolithic capacitor: Digi-Key P4917
(2) C6,7 10uF, 25V Miniature Electrolytic: Digi-Key P813
(1) Slide-on sink for U2: Digi-Key HS125-ND
(5) 2-pos. Terminal blocks (optional): Digi-Key ED-1601-ND
(1) Parallel port cable: various

A complete kit containing all of the above parts is available from CW
Technology for $35, 2 kits for $67, or 3 kits for $98.

Suppliers:

   CW Technology (me)	    ALL ABOVE PRICES INCLUDE SHIPPING
   7328 Timbercreek Ct
   Reynoldsburg, OH 43068-1181
   800-547-7479 - COD Orders Only 24 hrs. ($5 COD Charge applies)
   Sorry, no MC/Visa at this time.

   Digi-Key
   701 Brooks Ave
   Thief River Falls, MN 56701
   1-800-344-4539

   Mouser
   2401 Hwy 287 N
   Mansfield, TX 76063

   Pure Unobtanium
   13109 Old Creedmoor Rd
   Raleigh, NC 27613
   919-676-4525