(kicad_pcb (version 20171130) (host pcbnew "(5.1.5)-3")
  (general
    (thickness 1.6)
    (drawings 10)
    (tracks 149)
    (zones 0)
    (modules 3)
    (nets 25)
  )
  (page A4)
  (title_block
    (title "Open 6810 Doubler for Atari 1050")
    (date 2020-02-21)
    (rev "Rev 1.2007")
    (comment 1 http://blog.3b2.sk/igi/post/Atari-1050-ICD-US-doubler.aspx)
    (comment 2 "Based on work by Igor Gramblička, per blog posts here:")
    (comment 4 "SRAM 128- to 256-byte expansion for the Atari 1050 Disk Drive")
  )
  (layers
    (0 F.Cu signal)
    (31 B.Cu signal)
    (32 B.Adhes user)
    (33 F.Adhes user)
    (34 B.Paste user)
    (35 F.Paste user)
    (36 B.SilkS user)
    (37 F.SilkS user)
    (38 B.Mask user)
    (39 F.Mask user)
    (40 Dwgs.User user)
    (41 Cmts.User user)
    (42 Eco1.User user)
    (43 Eco2.User user)
    (44 Edge.Cuts user)
    (45 Margin user)
    (46 B.CrtYd user)
    (47 F.CrtYd user)
    (48 B.Fab user)
    (49 F.Fab user)
  )
  (setup
    (last_trace_width 0.25)
    (trace_clearance 0.2)
    (zone_clearance 0.508)
    (zone_45_only no)
    (trace_min 0.2)
    (via_size 0.8)
    (via_drill 0.4)
    (via_min_size 0.4)
    (via_min_drill 0.3)
    (uvia_size 0.3)
    (uvia_drill 0.1)
    (uvias_allowed no)
    (uvia_min_size 0.2)
    (uvia_min_drill 0.1)
    (edge_width 0.05)
    (segment_width 0.2)
    (pcb_text_width 0.3)
    (pcb_text_size 1.5 1.5)
    (mod_edge_width 0.12)
    (mod_text_size 1 1)
    (mod_text_width 0.15)
    (pad_size 1.524 1.524)
    (pad_drill 0.762)
    (pad_to_mask_clearance 0.051)
    (solder_mask_min_width 0.25)
    (aux_axis_origin 0 0)
    (visible_elements 7FFFFFFF)
    (pcbplotparams
      (layerselection 0x010fc_ffffffff)
      (usegerberextensions false)
      (usegerberattributes false)
      (usegerberadvancedattributes false)
      (creategerberjobfile false)
      (excludeedgelayer true)
      (linewidth 0.100000)
      (plotframeref false)
      (viasonmask false)
      (mode 1)
      (useauxorigin false)
      (hpglpennumber 1)
      (hpglpenspeed 20)
      (hpglpendiameter 15.000000)
      (psnegative false)
      (psa4output false)
      (plotreference true)
      (plotvalue true)
      (plotinvisibletext false)
      (padsonsilk false)
      (subtractmaskfromsilk false)
      (outputformat 1)
      (mirror false)
      (drillshape 1)
      (scaleselection 1)
      (outputdirectory ""))
  )
  (net 0 "")
  (net 1 /VCC)
  (net 2 /~cs2)
  (net 3 /a0)
  (net 4 /~cs1)
  (net 5 /a1)
  (net 6 /cs0)
  (net 7 /a2)
  (net 8 /d7)
  (net 9 /a3)
  (net 10 /d6)
  (net 11 /a4)
  (net 12 /d5)
  (net 13 /a5)
  (net 14 /d4)
  (net 15 /a6)
  (net 16 /d3)
  (net 17 /~we)
  (net 18 /d2)
  (net 19 /~cs5)
  (net 20 /d1)
  (net 21 /~cs4)
  (net 22 /d0)
  (net 23 /cs3)
  (net 24 /GND)
  (net_class Default "This is the default net class."
    (clearance 0.2)
    (trace_width 0.25)
    (via_dia 0.8)
    (via_drill 0.4)
    (uvia_dia 0.3)
    (uvia_drill 0.1)
    (add_net /a0)
    (add_net /a1)
    (add_net /a2)
    (add_net /a3)
    (add_net /a4)
    (add_net /a5)
    (add_net /a6)
    (add_net /cs0)
    (add_net /cs3)
    (add_net /d0)
    (add_net /d1)
    (add_net /d2)
    (add_net /d3)
    (add_net /d4)
    (add_net /d5)
    (add_net /d6)
    (add_net /d7)
    (add_net /~cs1)
    (add_net /~cs2)
    (add_net /~cs4)
    (add_net /~cs5)
    (add_net /~we)
  )
  (net_class GND ""
    (clearance 0.2)
    (trace_width 0.75)
    (via_dia 0.8)
    (via_drill 0.4)
    (uvia_dia 0.3)
    (uvia_drill 0.1)
    (add_net /GND)
  )
  (net_class VCC ""
    (clearance 0.2)
    (trace_width 0.5)
    (via_dia 0.8)
    (via_drill 0.4)
    (uvia_dia 0.3)
    (uvia_drill 0.1)
    (add_net /VCC)
  )
  (module Package_DIP:DIP-24_W15.24mm_LongPads (layer F.Cu) (tedit 5E503F59)
    (at 147.0025 86.36)
    (descr "24-lead though-hole mounted DIP package, row spacing 15.24 mm (600 mils), LongPads")
    (tags "THT DIP DIL PDIP 2.54mm 15.24mm 600mil LongPads")
    (fp_text reference A3 (at 7.62 -1.905) (layer B.SilkS))
    (fp_text value MCM6810_Driver (at 7.62 30.27) (layer B.Fab))
    (fp_text user %R (at 7.62 13.97) (layer B.Fab))
    (pad 24 thru_hole oval (at 15.24 0) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 1 /VCC))
    (pad 12 thru_hole oval (at 0 27.94) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 2 /~cs2))
    (pad 23 thru_hole oval (at 15.24 2.54) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 3 /a0))
    (pad 11 thru_hole oval (at 0 25.4) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 4 /~cs1))
    (pad 22 thru_hole oval (at 15.24 5.08) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 5 /a1))
    (pad 10 thru_hole oval (at 0 22.86) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 6 /cs0))
    (pad 21 thru_hole oval (at 15.24 7.62) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 7 /a2))
    (pad 9 thru_hole oval (at 0 20.32) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 8 /d7))
    (pad 20 thru_hole oval (at 15.24 10.16) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 9 /a3))
    (pad 8 thru_hole oval (at 0 17.78) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 10 /d6))
    (pad 19 thru_hole oval (at 15.24 12.7) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 11 /a4))
    (pad 7 thru_hole oval (at 0 15.24) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 12 /d5))
    (pad 18 thru_hole oval (at 15.24 15.24) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 13 /a5))
    (pad 6 thru_hole oval (at 0 12.7) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 14 /d4))
    (pad 17 thru_hole oval (at 15.24 17.78) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 15 /a6))
    (pad 5 thru_hole oval (at 0 10.16) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 16 /d3))
    (pad 16 thru_hole oval (at 15.24 20.32) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 17 /~we))
    (pad 4 thru_hole oval (at 0 7.62) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 18 /d2))
    (pad 15 thru_hole oval (at 15.24 22.86) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 19 /~cs5))
    (pad 3 thru_hole oval (at 0 5.08) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 20 /d1))
    (pad 14 thru_hole oval (at 15.24 25.4) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 21 /~cs4))
    (pad 2 thru_hole oval (at 0 2.54) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 22 /d0))
    (pad 13 thru_hole oval (at 15.24 27.94) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 23 /cs3))
    (pad 1 thru_hole rect (at 0 0) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 24 /GND))
  )
  (module Package_DIP:DIP-24_W15.24mm_LongPads (layer F.Cu) (tedit 5E503EF5)
    (at 156.61 86.36)
    (descr "24-lead though-hole mounted DIP package, row spacing 15.24 mm (600 mils), LongPads")
    (tags "THT DIP DIL PDIP 2.54mm 15.24mm 600mil LongPads")
    (fp_text reference U2 (at 7.62 -1.905) (layer F.SilkS))
    (fp_text value MCM6810 (at 7.62 30.27) (layer F.Fab))
    (fp_text user %R (at 7.62 13.97) (layer F.Fab))
    (fp_text user MCM6810 (at 10.16 13.97 90) (layer F.SilkS))
    (pad 24 thru_hole oval (at 15.24 0) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 1 /VCC))
    (pad 12 thru_hole oval (at 0 27.94) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 2 /~cs2))
    (pad 23 thru_hole oval (at 15.24 2.54) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 3 /a0))
    (pad 11 thru_hole oval (at 0 25.4) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 4 /~cs1))
    (pad 22 thru_hole oval (at 15.24 5.08) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 5 /a1))
    (pad 10 thru_hole oval (at 0 22.86) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 6 /cs0))
    (pad 21 thru_hole oval (at 15.24 7.62) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 7 /a2))
    (pad 9 thru_hole oval (at 0 20.32) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 8 /d7))
    (pad 20 thru_hole oval (at 15.24 10.16) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 9 /a3))
    (pad 8 thru_hole oval (at 0 17.78) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 10 /d6))
    (pad 19 thru_hole oval (at 15.24 12.7) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 11 /a4))
    (pad 7 thru_hole oval (at 0 15.24) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 12 /d5))
    (pad 18 thru_hole oval (at 15.24 15.24) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 13 /a5))
    (pad 6 thru_hole oval (at 0 12.7) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 14 /d4))
    (pad 17 thru_hole oval (at 15.24 17.78) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 15 /a6))
    (pad 5 thru_hole oval (at 0 10.16) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 16 /d3))
    (pad 16 thru_hole oval (at 15.24 20.32) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 17 /~we))
    (pad 4 thru_hole oval (at 0 7.62) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 18 /d2))
    (pad 15 thru_hole oval (at 15.24 22.86) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 19 /~cs5))
    (pad 3 thru_hole oval (at 0 5.08) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 20 /d1))
    (pad 14 thru_hole oval (at 15.24 25.4) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 21 /~cs4))
    (pad 2 thru_hole oval (at 0 2.54) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 22 /d0))
    (pad 13 thru_hole oval (at 15.24 27.94) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 23 /cs3))
    (pad 1 thru_hole rect (at 0 0) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 24 /GND))
    (model ${KISYS3DMOD}/Package_DIP.3dshapes/DIP-24_W15.24mm.wrl
      (at (xyz 0 0 0))
      (scale (xyz 1 1 1))
      (rotate (xyz 0 0 0))
    )
  )
  (module Package_DIP:DIP-24_W15.24mm_LongPads (layer F.Cu) (tedit 5E503EA9)
    (at 137.36 86.36)
    (descr "24-lead though-hole mounted DIP package, row spacing 15.24 mm (600 mils), LongPads")
    (tags "THT DIP DIL PDIP 2.54mm 15.24mm 600mil LongPads")
    (fp_text reference U1 (at 7.62 -1.905) (layer F.SilkS))
    (fp_text value MCM6810 (at 7.62 30.27) (layer F.Fab))
    (fp_text user %R (at 7.62 13.97) (layer F.Fab))
    (fp_text user MCM6810 (at 5.515 13.97 90) (layer F.SilkS))
    (pad 24 thru_hole oval (at 15.24 0) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 1 /VCC))
    (pad 12 thru_hole oval (at 0 27.94) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 2 /~cs2))
    (pad 23 thru_hole oval (at 15.24 2.54) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 3 /a0))
    (pad 11 thru_hole oval (at 0 25.4) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 4 /~cs1))
    (pad 22 thru_hole oval (at 15.24 5.08) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 5 /a1))
    (pad 10 thru_hole oval (at 0 22.86) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 21 /~cs4))
    (pad 21 thru_hole oval (at 15.24 7.62) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 7 /a2))
    (pad 9 thru_hole oval (at 0 20.32) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 8 /d7))
    (pad 20 thru_hole oval (at 15.24 10.16) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 9 /a3))
    (pad 8 thru_hole oval (at 0 17.78) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 10 /d6))
    (pad 19 thru_hole oval (at 15.24 12.7) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 11 /a4))
    (pad 7 thru_hole oval (at 0 15.24) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 12 /d5))
    (pad 18 thru_hole oval (at 15.24 15.24) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 13 /a5))
    (pad 6 thru_hole oval (at 0 12.7) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 14 /d4))
    (pad 17 thru_hole oval (at 15.24 17.78) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 15 /a6))
    (pad 5 thru_hole oval (at 0 10.16) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 16 /d3))
    (pad 16 thru_hole oval (at 15.24 20.32) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 17 /~we))
    (pad 4 thru_hole oval (at 0 7.62) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 18 /d2))
    (pad 15 thru_hole oval (at 15.24 22.86) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 19 /~cs5))
    (pad 3 thru_hole oval (at 0 5.08) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 20 /d1))
    (pad 14 thru_hole oval (at 15.24 25.4) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 2 /~cs2))
    (pad 2 thru_hole oval (at 0 2.54) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 22 /d0))
    (pad 13 thru_hole oval (at 15.24 27.94) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 23 /cs3))
    (pad 1 thru_hole rect (at 0 0) (size 2.4 1.6) (drill 0.8) (layers *.Cu *.Mask)
      (net 24 /GND))
    (model ${KISYS3DMOD}/Package_DIP.3dshapes/DIP-24_W15.24mm.wrl
      (at (xyz 0 0 0))
      (scale (xyz 1 1 1))
      (rotate (xyz 0 0 0))
    )
  )
  (gr_arc (start 135.89 116.205) (end 134.62 116.205) (angle -90) (layer Edge.Cuts) (width 0.1))
  (gr_arc (start 173.355 116.205) (end 173.355 117.475) (angle -90) (layer Edge.Cuts) (width 0.1))
  (gr_arc (start 173.355 84.455) (end 174.625 84.455) (angle -90) (layer Edge.Cuts) (width 0.1))
  (gr_arc (start 135.89 84.455) (end 135.89 83.185) (angle -90) (layer Edge.Cuts) (width 0.1))
  (gr_text "Socket this side to mainboard." (at 167.005 99.695 90) (layer B.SilkS))
  (gr_text "Open 6810 Doubler for Atari 1050\nRev 1.2007" (at 142.875 99.695 90) (layer B.SilkS))
  (gr_line (start 174.625 84.455) (end 174.625 116.205) (layer Edge.Cuts) (width 0.1))
  (gr_line (start 135.89 83.185) (end 173.355 83.185) (layer Edge.Cuts) (width 0.1))
  (gr_line (start 134.62 116.205) (end 134.62 84.455) (layer Edge.Cuts) (width 0.1))
  (gr_line (start 173.355 117.475) (end 135.89 117.475) (layer Edge.Cuts) (width 0.1))
)
