4 Jun
2007
4 Jun
'07
11:21 a.m.
At 01:24 AM 6/4/2007, you wrote:
I did a cost projection for the motherboard in my Imsai
8080
This is a 22slot , 8.5" x 17", 0.062" thickness, 2 layer pcb, 2oz copper.
The copper thickness might be alittle more, but I couldn't see mentioned
in the manual.
This is only for a batch order--eg, pre-orders only (20x)., as I don't
inventory bulk parts.
With a batch order of 20 units, including shipping costs, it's only $35 each.
Then with the 22x S-100 connectors, at $5 each, an additional $110.
The kit would be $145, minus the nuts n bolts(that's easy to find)
I might put this on my To-Do list.
Where do you get S-100 connectors for $5 or huge 1/8" PCBs for $35? I use
Imagineering for PCBs and I can't get $35 a piece for 1/8 FR4 11x13" (being
conservative) unless I order 50 with a 3 week lead time.
I buy the same edge card connectors that MITS bought, minus one part number
digit because I am buying non gold plated pins. The contacts are gold
plated. If I buy 10 from DigiKey they are $14-$15. If I buy direct from
the company they are $17-$20. : )
I've heard horror stories from Todd Fisher about cheap sockets...
Grant