Re: PDP-11/73 boot issues

[Aaron Jackson via cctalk]

> Pete Turnbull via cctalk writes:
>
>> On 21/09/2021 20:34, Chris Zach via cctalk wrote:
>>> Can an MXV11 be used in a 22 bit system? I thought it was an 18 bit
>>> device?
>>
>> MXV11-B is 22-bit.  MXV11-A is 18-bit but supposedly can be used in a 
>> 22-bit system if the RAM is disabled.
>
> Yeah this is a 22 bit card. Josh sent me an xxdp image which I could
> easily boot from my scsi2sd (thanks!).  Seems to be reporting an error
> with the CPU unfortunately:
>
> ]] .R ZKDJ??
> ]] ZKDJB2.BIC
> ]] 
> ]] ERROR WHILE TESTING BOARD FUNCTIONS
> ]] ERROR # =001166
> ]] ERROR PC =040662
> ]] 043632
>
> This happens regardless of whether W9 is installed or not (supposedly
> disables the LTC register on the CPU?)
>
> I'll see if I can borrow another CPU card form a friend this
> weekend. Unless anyone else has any ideas?  Another suggestion on IRC
> was to disable the PSU LTC and enable the LTC on MXV11 but will need to
> look up some details on how to do this.
>
> Thanks,
> Aaron

Probing the BEVENT line and it was 50hz etc, but then I realised it
wasn't actually the right voltage. Replaced a transistor and now it
boots!

Cheers,
Aaron

Re: scanning a ton of documentation

[Michael Mulhern via cctalk]

Confirming IA will derive off PDF as well as CBZ to generate OCRed PDFs.

//m

On Fri, 24 Sep 2021 at 7:33 pm, Christian Corti via cctalk <
cctalk@classiccmp.org> wrote:

> On Wed, 22 Sep 2021, Al Kossow wrote:
> > On 9/22/21 1:51 PM, Christian Corti via cctalk wrote:
> >> Hasn't worked for me in the past ...
> > guess I picked a bad day to stop sniffing glue
>
> Don't get me wrong, but I had written some emails in the last years
> offering stuff for bitsavers (downloadable from our FTP site). They never
> made it into the archives.
>
> Christian
>
-- 


*Blog: RetroRetrospective – Fun today with yesterday's gear……..
*
*Podcast*: *Retro Computing Roundtable * (Co-Host)

BC19S

[Doc Shipley via cctalk]

Hi, Chris,
  Where are you, and how long is that cable?  I believe that I have a 
spare that's around 18".
  As luck would have it, I'm moving, and today I'm sorting and culling 
the graphics cable tub anyway.  If I have a spare I'll save it out.



Doc

DEC ML11 (Was: DEC KM11 (Was: DEC KL11))

[Noel Chiappa via cctalk]

> From: Tony Duell 

> Were there 2 things called the KM11?
> The KM11 that I know is the maintenance unit

> From: Paul Birkel

> I think that we're all talking about the ML11-A, or at least are
> intending to ... although the Subject line has been erroneous from the
> get-go ...

Well, at least your brains are working, unlike mine! (Age starting to catch
up with me?) Yes, the ML11; I tried to correct the erroneous 'KL11' and
changed the wrong letter!

Noel

Re: scanning a ton of documentation

[Al Kossow via cctalk]

On 9/24/21 2:32 AM, Christian Corti via cctalk wrote:

Don't get me wrong, but I had written some emails in the last years offering stuff for bitsavers (downloadable from our FTP site). They 
never made it into the archives.


Christian


I know I've put some things up. Sometimes offers get lost in my email stream.

Re: scanning a ton of documentation

[Christian Corti via cctalk]

On Wed, 22 Sep 2021, Al Kossow wrote:

On 9/22/21 1:51 PM, Christian Corti via cctalk wrote:

Hasn't worked for me in the past ...

guess I picked a bad day to stop sniffing glue


Don't get me wrong, but I had written some emails in the last years 
offering stuff for bitsavers (downloadable from our FTP site). They never 
made it into the archives.


Christian

Re: scanning a ton of documentation

[Christian Corti via cctalk]

On Wed, 22 Sep 2021, Al Kossow wrote:

Bitsavers will post process and create a searchable PDF


Since when?


I think I'll just step away from the terminal for a few hours.
I've been OCRing uploads for YEARS.


Ok, I didn't know that you do that for foreign scans, I thought you only 
OCR your own scans.


Christian

RE: DEC KM11 (Was: DEC KL11)

[Paul Birkel via cctalk]

> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Tony Duell 
> via cctalk
> Sent: Friday, September 24, 2021 4:12 AM
> To: Noel Chiappa; General Discussion: On-Topic and Off-Topic Posts
> Subject: Re: DEC KM11 (Was: DEC KL11)
>
> On Thu, Sep 23, 2021 at 6:38 PM Noel Chiappa via cctalk
>  wrote:
>
> > Huh? The KM11 doesn't plug into the UNIBUS (or QBUS); it's a MASSBUS device 
> > (a
> > solid-state storage device, actually), so it plugs into an RH11 or RH70 or
> > something like that. (I should work with the VAX MASSBUS controller, too.)
> > So the question 'is it 18 bit compatible' makes no sense.
>
> Were there 2 things called the KM11?
>
> The KM11 that I know is the maintenance unit, composed of a W130 and
> W131 plugged together. It goes into a specially-wired connector on
> some older PDP11s (e.g. the 11/45), controllers (e.g. RK11C) and
> periperals (e.g. RX01).
>
>  I have a pair of real DEC ones, and a clone I built to do tests on my
> PDP11/45 before I got the DEC ones.
>
> -tony

I think that we're all talking about the ML11-A, or at least are intending to 
... although the Subject line has been erroneous from the get-go ...

As Mark said:

PartTitleStatus
EK-0ML11-TD *ML11 Technical Description
EK-0ML11-TM *ML11 Technical Manual
EK-0ML11-UG *ML11 User's Guide

-
paul

Re: DEC KM11 (Was: DEC KL11)

[Tony Duell via cctalk]

On Thu, Sep 23, 2021 at 6:38 PM Noel Chiappa via cctalk
 wrote:

> Huh? The KM11 doesn't plug into the UNIBUS (or QBUS); it's a MASSBUS device (a
> solid-state storage device, actually), so it plugs into an RH11 or RH70 or
> something like that. (I should work with the VAX MASSBUS controller, too.)
> So the question 'is it 18 bit compatible' makes no sense.

Were there 2 things called the KM11?

The KM11 that I know is the maintenance unit, composed of a W130 and
W131 plugged together. It goes into a specially-wired connector on
some older PDP11s (e.g. the 11/45), controllers (e.g. RK11C) and
periperals (e.g. RX01).

 I have a pair of real DEC ones, and a clone I built to do tests on my
PDP11/45 before I got the DEC ones.

-tony