25 Sep
2026
25 Sep
'26
5:50 p.m.
It has the 18 bit Q/CD backplane, I have another 22 bit Q22/CD backplane
in the closet here, holding a bunch of cards.
Anyone got the little short 9270 or whatever it was that had the power
supply and 4 full slots of Q18 (or maybe Q16. Hm. I wonder if I ever ran
an 11/23 in it). That would suit my needs, then I could let this guy go.
C
On 9/25/26 16:37, Peter Ekstrom wrote:
> Chris,
>
> I honestly have no idea. Does yours have the 8-slot H9278 backplane?
> My 11/23+ uses a 9-slot H9276 Q/CD backplane. I don't believe H9276
> will fit in an 11/03 box though.
>
> I once tried to get an 11/23 up and running using an H9278. It worked
> fine until I plugged in the RQDX3 board.
> I probably missed something in my reading but it seemed like it should
> work. The RQDX3 died though.
>
> I still have that H9278 in a box, but I don't plan to use it. If
> anyone wants it...
>
> - Peter
>
> On Fri, Sep 25, 2026 at 4:05 PM Chris Zach via cctalk
> <cctalk(a)classiccmp.org> wrote:
>
> Always tricky: I have one in the shed, use it occasionally when I
> want
> to say fire up an 11/03 with the WCS11, not sure if that combo would
> work in a BA23 Q22 type backplane.
>
> Does the 11/03 quad work in a BA23's Q22/Q22 slots? Will it blow
> up if
> half of it is in a Q22/CD slot?
>
> C
>
> On 9/25/26 12:09, Peter Ekstrom via cctalk wrote:
> > Yeah I am watching that one. Was just thinking I should ask here
> too just
> > in case.
> >
> > - Peter
> >
> > On Fri, Sep 25, 2026 at 11:54 Nadav Eiron
> <nadav.eiron(a)gmail.com> wrote:
> >
> >> There's this on ePay right now:
> https://www.ebay.com/itm/206568161235
> >> which is not exactly what you're asking for, but may be pretty
> close.
> >> Disclaimer: I have no relationship or experience with the
> seller, proceed
> >> at your own risk etc.
> >>
> >> On Fri, Sep 25, 2026 at 4:09 PM Peter Ekstrom via cctalk <
> >> cctalk(a)classiccmp.org> wrote:
> >>
> >>> Hi everyone,
> >>>
> >>> I may have asked this before, I can't remember...
> >>>
> >>> I have a PDP-11/23+ pieced together on an H9276 backplane,
> sitting on the
> >>> floor. I have rigged
> >>> some fans to keep it cool, but I would love to have either a
> complete
> >>> BA11-S box, or the H9276-B
> >>> cardcage for it. The cardcage doesn't have to have the
> backplane since I
> >>> already have one.
> >>>
> >>> Does anyone have either of these that they'd be willing to
> part with?
> >>>
> >>> I am located in the US.
> >>>
> >>> - Peter
> >>>
>