On Tue, 30 Oct 2018, Brent Hilpert via cctalk wrote:
If you haven't tried it already, a good exercising with contactr
cleaner (stay away from the stuff with oil in it) or isoprop will often
clear up excessive contact bounce on old switches. Getting contact
May be, but this would only solve o
On 2018-Oct-30, at 8:07 AM, Klemens Krause via cctalk wrote:
> Is there anybody out with a working classic PDP-8?
>
> For a long time we had the problem, that starting a program on our 8 by
> pressing keys, this program crashed. Examining the memory
> contents showed, that typically one or two
On Tue, Oct 30, 2018 at 8:07 AM Klemens Krause via cctalk <
cctalk@classiccmp.org> wrote:
> Is there anybody out with a working classic PDP-8?
>
>
> Now my question to other classic-8 users: What does your machine do, if a
> program is running and you press one of the front keys, which shouldn't b
On Tue, Oct 30, 2018 at 1:21 PM Paul Koning via cctalk <
cctalk@classiccmp.org> wrote:
>
>
> > On Oct 30, 2018, at 1:14 PM, dwight wrote:
> >
> > My Nicolet did the same thing it would load 0 into the intended start
> location ( on my machine it was a jump to 0 ).
> > The front panel worked fine
> On Oct 30, 2018, at 1:14 PM, dwight wrote:
>
> My Nicolet did the same thing it would load 0 into the intended start
> location ( on my machine it was a jump to 0 ).
> The front panel worked fine otherwise. It turned out to be some missing
> clocks because of a bad 7474. Strange that a co
different issue but all writing 0 back to core.
Dwight
From: cctalk on behalf of Paul Koning via
cctalk
Sent: Tuesday, October 30, 2018 10:01:29 AM
To: Klemens Krause; General Discussion: On-Topic and Off-Topic Posts
Subject: Re: behaviour of classic PDP-8
> On Oct 30, 2018, at 11:07 AM, Klemens Krause via cctalk
> wrote:
>
> Is there anybody out with a working classic PDP-8?
>
> For a long time we had the problem, that starting a program on our 8 by
> pressing keys, this program crashed. Examining the memory
> contents showed, that typica
Is there anybody out with a working classic PDP-8?
For a long time we had the problem, that starting a program on our 8 by
pressing keys, this program crashed. Examining the memory
contents showed, that typically one or two words short behind the starting
adress after such a crash had inadve
