Re: CBM edge connectors pitch?

2016-10-14 Thread Eric Smith
On Thu, Oct 13, 2016 at 4:12 PM, jim stephens wrote: > If these are the connectors that can have keys inserted between every > connector, the small difference would be significant as those would not > align between a metric connector and an English (inch) board. The >

Re: CBM edge connectors pitch?

2016-10-13 Thread jim stephens
On 10/13/2016 3:07 PM, Eric Smith wrote: It doesn't make much difference in practice. The highest pin-count .156" connector I've ever dealt with was 86 pin (43x2), and the difference in the nominal first-to-last position is only 10.5 mils, which is on the order of the non-cumulative position

Re: CBM edge connectors pitch?

2016-10-13 Thread Brent Hilpert
On 2016-Oct-13, at 10:39 AM, Jim Brain wrote: > I thought the question about the prevalence of .156" connectors in early > systems was interesting and I assume someone here has the detail on the > rationale. > > Jim > > Forwarded Message ---- > Subj

RE: CBM edge connectors pitch?

2016-10-13 Thread tony duell
> I thought the question about the prevalence of .156" connectors in early > systems was interesting and I assume someone here has the detail on the > rationale. I have wondered if it's an approximation to 0.15625" -- 5/32" pitch. -tony