[TUHS] Fwd: Choice of Unix for 11/03 and 11/23+ Systems

[Paul Riley]

Noel,

Some more info on my machines...










*The
DLV11-J:  http://gunkies.org/wiki/DLV11-J_asynchronous_serial_line_interface
<http://gunkies.org/wiki/DLV11-J_asynchronous_serial_line_interface>is
basically 4 DLV11's rolled into a single dual-width card; that's
definitelyan option for Mini-Unix (which apparently supports up to 4
simultaneoususers). They are program compatible with the DHV11, so the
driver should 'justwork'. The boards are readily available on eBait;
'glitchworks' (of thisparish) sells replacement cables (quite good, I have
several).*
I bought a DLV-11J on eBay so that's a starter for my /03 machine. I've
also bought an MSV11-DE 32kW memory board. Peter Schranz has confirmed a
modification to his RLV12/RL02 emulator to allow it to run on the /03. I'm
all set for Mini-Unix on the /03 then!

Regarding the KDF11-B:



*If yours doesn't have the MMU chip, you're probably SOL; those are very
rare.KEF11-A FPU chips are avilable on eBay for modest amounts.  *

Looks like I'm in luck! My /23+ CPU board does have the MMU installed. I
also bought a KEF11-A separately. Glad my wife doesn't know about all these
purchases. ;)

Paul
*Paul Riley*

Mo: +86 186 8227 8332
Email: paul at rileyriot.com



On Tue, 29 Sep 2020 at 07:23, Noel Chiappa <jnc at mercury.lcs.mit.edu> wrote:

>     > From: Pete Turnbull
>
>     > The SRUNL signal that was mentioned isn't likely to cause a problem
>
> That was just a guess on my part as to the exact cause. It is definite,
> though, that Q22 memory won't work with an LSI-11/2 (M7270); I just tried
> it.
> I didn't touch any of the other boards; just swapped the LSI-11/2 for a
> KDF11-A (M8186), everything worked fine; put the LSI-11/2 back, dead again.
>
> I'll try an LSI-11 (M7264) tomorrow, make sure it's the same; it and the
> LSI-11/2 are similar enough that it should, but it'd be good to confirm it.
>
>
> Then back to trying to work out why Mini-Unix is so fragile for me. Has
> anyone else ever worked with Mini-Unix, and if so, any tips?
>
>        Noel
>
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