From : 
David Gesswein
10024 Woodhill Rd
Bethesda MD 20817
301-365-5585
djg@pdp8onlinecom

top-Edge_Cuts.gko	Board outline
top-F_Cu.gtl		Component side copper
top-B_Cu.gbl		Solder side copper
top-F_SilkS.gto		Component side silk screen
top-B_SilkS.gbo		Solder size silk screen
top-F_Mask.gts		Component side solder mask
top-B_Mask.gbs		Solder side solder mask
top.drl			Drill file plated through holes
top-NPTH.drl		Drill file non plated through holes


Part Number-----------------------: mfm
Revision--------------------------: B
Board size------------------------: 4.6" x 5.75
Board Thickness-------------------: 0.062"
Board type------------------------: TWO LAYER
P.C.B material--------------------: FR4
Finished Copper-------------------: 1 oz
Finish----------------------------: Lead free
Mask color------------------------: GREEN
Silk screen color-----------------: WHITE
Surface mount---------------------: Yes
Smallest trace size---------------: 0.010"
Smallest clearance between traces-: 0.010"
Smallest annular ring-------------: .007"
Routing---------------------------: Single boards
Gold Edge Connectors--------------: 20 microinches hard gold
Edge Connector Notch--------------: .030" (needs to be .029 to .036 inches)


ASSEMBLY NOTES:

J8 and J9 are installed on solder side of board.

J3 and J6 pin 8 should be removed before installation
J4 4 pin pin 15 should be removed before installation
Pin numbering for J3 and J6 is below. J4 is number similarly. Note pin 1 
location when installing on board.
  02 04 06 08 10 12 14 16 18 20
  01 03 05 07 09 11 13 15 17 19"

See U12.jpg for correct orientation of U12.