On Tue, Jan 26, 2016 at 5:46 PM, Guy Sotomayor <g...@shiresoft.com> wrote: > I just received the first of the BC11A paddle boards (so that I can now > create my own BC11A cables).
Cool! > For those who’d like to know, I probably will not be making a production run > of these boards unless I get a *lot* of interest (100 boards or so). If you > want some, let me know and if I get enough interest, I’ll do a production run. Considering DEC did something like this for the DWBUA, but with 4 30-pin cables (by necessity because of the BI backplane), is 2x60 pins more cost-effective than 4x30? Mostly, I'm curious about how much 60-pin ends cost and the difference in cost between 2 lengths of 60-pin ribbon cable vs 4 lengths of 30-pin cable. The copper cost is the same, but I wasn't sure what the current cost-per-foot is for ribbon cable. I haven't bought a reel of it in 30 years, but I do recall that 40 pin seemed to be more expensive than 4 times the length of 10-pin, for example (since we used both where I worked in the 80s). Either way, these days, the cost of 2x60 vs 4x30 is probably minor compared to the fab costs of a "large" PCB with gold fingers. I'd be curious to know how much a 10' BC11A-work-a-like will run, but I'm vaguely interested in some pairs of boards. I do have plenty of Unibus machines and RK05s, most with vintage cables, but I'm sure several of them have crimps and dings and might fail close inspection. -ethan