http://bill.welliver.org/atom/letterpress/monotype/CasterControl electronic.alchemy :: Caster Control Notes 2026-04-12T23:35:17-04:00 Public.Syndication.ATOM (Pike v8.0 release 702) http://bill.welliver.org/favicon.ico http://bill.welliver.org/static/images/alchemy.gif Bill Of Materials 2 Cables-to-go #02666 10ft M/M DB25 Cable 31 Clippard #EV-3M-12 12V N/C 3-Way Mouse Valve 4 Clippard #15481-8 8 port mouse valve manifold 11 Clippard UT0-4 (10-32 x 1/8 I.D. elbow) 22 Clippard CT4 31 Clippard CT-4 (10-32 x 1/8 I.D) Clippard 11755-ENP 2 100k ohm resistors 1 10k ohm resistor \ 1 7k5 ohm resistor 2 220 ohm resistors 1 470 ohm resistor 4 8-way isolated 220 ohm resistor nets 4 8-way bussed 470 ohm resistor nets 4 8-way isolated 1k ohm resistor nets 4 8-way bussed 10k ohm resistor nets 3 DB25 female ports 33 T-1 LEDs Molex connectors 17 Fairchild #HCPL-2731 2 channel opto-isolator 4 Toshiba #UNL2803A 8 channel darlington array 1 Code Mercanaries DIP-40 IO-Warrior Assembly notes, pcb revision 0.9 LEDs for valve activity (only) are reversed from silkscreen. Short lead to short to squared side on board. center of a 220/10k ohm voltage divider on input pin (18) reorder port 3, pins 10-13. reorder led traces: cut trace to led 27 pin 2 on top layer. Assembly order individual resistors c2 hcpl 2731s isolated resistor nets (dip) bussed resistor nets (sip) leds sockets can capacitors power terminal usb socket db sockets populate sockets with ics Cable Color Code 25 white 24 gray/black 23 gray 22 violet/white 21 violet 20 blue/white 19 blue 18 aqua 17gr/black 16 gr/white 15 green 14 y/black 13 yellow 12 pink/black 11 pink 10 orange black 9 orange white 8 orange 7 r/b 6 r/w 5 r 4 br/w 3 br 2 bl/w 1 black Cable Pinnings cables are pinned identically, though only cable 3 uses pins 12 + 13 for input, and cable 3 does not use all connections for valves. 1, 25 2, 24 3, 23 4, 22 5, 21 6, 20 7, 19 8, 18 9, 17 10, 16 11, 15 12, 13