15 Aug
2019
15 Aug
'19
9:33 a.m.
Speaking from experience from having done a few Unibus boards now (none of them available
yet unfortunately) that providing a general Unibus interface on a quad board will consume
a reasonable amount of the board space and limit flexibility on which
driver/receiver/transceiver parts that can be used. That?s just for the Unibus drivers.
If you want to actually *run* the interface then you?re talking a lot more stuff.
Of course, the boards I?m doing are all SMD (with the exception of the unibus interface
parts). I also have to add in 5v to 3.3v conversion. Even on a 4 layer board there?s
lots of ?congestion? which limits the number of parts that can actually placed on the
board. :-(
TTFN - Guy
On Aug 15, 2019, at 1:23 AM, emanuel stiebler via
cctalk <cctalk at classiccmp.org> wrote:
On 2019-08-15 02:13, systems_glitch via cctalk wrote:
Connor Krukosky and I have been working on laying
out a new quad-height DEC
protoboard, which can also be sheared down into a dual-height board. Full
announce on the VC Forums:
http://www.vcfed.org/forum/showthread.php?71177-GW-DEC-1-A-New-Quad-Height-…
Was always hoping somebody would do something like that, but with the
bus interface already on it ...