26 Sep
2014
26 Sep
'14
1:49 p.m.
On Sep 26, 2014, at 4:01 PM, Noel Chiappa <jnc at mercury.lcs.mit.edu> wrote:
I think most if not all Qbus backplanes were PCBs. But some of them
(notably the H9270) are PCBs with wire-wrap posts for the connector
terminals. Makes it very handy to, say, modify the H9270 for 22-bit,
which I did with a cheap handheld "screwdriver" type wire-wrap tool
with no problem.
- Dave
From: Roe
Peterson
I need a wire wrap tool for qbus/unibus. What
size for those pins?
None of my current DEC backplanes have wire-wrap pins (these are all PCBs),
_but_ I just measured some wire-wrap configuration pins on QBUS boards, which
look to be about the same size as I recall UNIBUS backplane pins being, and
those are .7mm / .025".