PDP-11/05 (was: PDP-11/05 microcode dump?)

[Bill Degnan]

While we are on the subject of pdp11/05's I am in the need of repair
services for my M7261 KD11-B CPU board 1

(CONTROL LOGIC & MICROPROGRAMMED MODULE.)

Bill

On Tue, Jun 15, 2021, 9:59 AM Tony Duell via cctalk <cctalk at classiccmp.org>
wrote:

> On Tue, Jun 15, 2021 at 6:34 AM Tom Uban via cctalk
> <cctalk at classiccmp.org> wrote:
>
> > My KM11s are based on Tony Duell's schematic and if you look, switches S3
> > and S4 are both driving outputs rather than simply switching them to
> ground,
> > so I don't think two boards at one time would work if these signals are
> simply
> > tied in parallel on slots A2 and B2.
>
> I took the switch circuits from the offical KM11 schematics which are
> either in the PDP11/45 CPU printset or the RK11-C printset that I
> have, I forget which. I certainly didn't add logic or replace
> open-collector parts with totem-pole ones.
>
> -tony
>