1 Nov
2021
1 Nov
'21
6:09 p.m.
No, Zane, it is made by Dilog. I heard that the device can do both tape
and disk, but that to save money on DEC's royalty payments they only put
the proms in for what you bought - which is not a problem since I got
two of them!
I figure if you can't beat it, go with the flow!? I am going to move the
Plessey DCV54 to 160340 and let the SQ706 play at 172150, even though
its diagnostic says its at 174500! The reason I know it is coming up at
172150 is that the DCV54 diagnostic says there is a non-DCV54 controller
there, only when the SQ703(6) is plugged in.
Unfortunately? there are other jobs I have to do first, including fixing
a very noisy power contactor in a DEC power controller that is upsetting
the wife, and the microvax seems to have a ground? loop voltage that is
preventing me from entering anything on the console channel since I
installed the power converter!
Cheers,
Nigel
Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU
Amateur Radio, the origin of the open-source concept!
Skype: TILBURY2591 nw.johnson at ieee.org
On 2021-11-01 1:40 p.m., Zane Healy wrote:
Who made the SQ703/SQ706? Is this a rebadge Viking
board? If so then it?s the PAL.
I think that the OED needs to improve their definition of VAX.
Zane
> On Nov 1, 2021, at 4:23 AM, Nigel Johnson Ham via cctalk <cctalk at
classiccmp.org> wrote:
>
> A few months ago, thanks to help from several people here, I converted
> an SQ703 TMSCP controller to SQ706 MSCP.
>
> I had problems trying to use it on the vax due to the complexity of
> mapping Q-Bus registers under ODT, so put off trying until I got the
> LSI-11/73 going.
>
> Now I have a problem: It seems to run and recognise the controller as
> SQ706 according to the on-board diagnostics, however it insists saying
> it is at 777450, the TMSCP address. Trying to change it gives me an
> out-of-bounds message.
>
> OK, I thought, I will just use it there.
>
> Put it in to a running RT11 system and it shows up at 772150 and clashes
> with an existing controller!
>
> It seems that one of the PALs is maybe setting up the address!
>
> Anybody else tried this?
>
> cheers,
>
> Nigel
>
> Here's the fun:
> https://www(dot)bbc(dot)com/news/entertainment-arts-59089596
>
> Maybe our vax computers will become popular once again!
>
> --
> Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU
> Amateur Radio, the origin of the open-source concept!
> Skype: TILBURY2591 nw.johnson at ieee.org
>
>
>