From mboxrd@z Thu Jan  1 00:00:00 1970
From: asbesto@freaknet.org (asbesto)
Date: Mon, 19 May 2014 15:44:49 +0200
Subject: [TUHS] Unix on an 11/23 (Was: Work I've done with a PDP-11
 simulator)
In-Reply-To: <20140515205659.1FED918C0C0@mercury.lcs.mit.edu>
References: <20140515205659.1FED918C0C0@mercury.lcs.mit.edu>
Message-ID: <20140519134448.GB20174@freaknet.org>

Thu, May 15, 2014 at 04:56:59PM -0400, Noel Chiappa wrote:

>     > the disruptive fact (in terms of time) here is to put up-to-date both
>     > the PDP-11/23-PLUS and RL02. 
> 
> My apologies, I just now noticed that you have an 11/23-PLUS (it is slightly
> different from a plain 11/23).
> 
> I am not very familiar with the 11/23-PLUS (I never worked with one), but from
> documentation I just dug out, it seems that they normally come with the MMU
> chip, so we don't need to worry about that. However, the FPP is not standard,
> so that is still an issue for bringing up Unix.

Just in these days we restored a PDP-11/23PLUS here at our
Museum! :) 

we had to create the power supply with a normal PC PSU and also
we made the 50Hz signal clock using a PIC. CPU is working and
we're trying to boot from a RL02 unit :) 

we're experiencing problems at our website so we have pictures
and info only on our facebook group, sorry for that. 

https://www.facebook.com/groups/musif/
http://museum.freaknet.org



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