22 Jun
2016
22 Jun
'16
1:12 p.m.
Date: Tue, 21 Jun 2016 18:08:49 -0700
From: Glen Slick <glen.slick at gmail.com>
Subject: Re: PDP-11/40 modified to be a PDP-11/23
What boards exactly? Are you sure it's not an M7133 11/24 board instead?
From front to back in the AB slots:
- M8186, KDF11-A, 11/23 CPU, 18-bit addressing only
- M8044-DM, MSV11-DD, 32-Kword 16-bit MOS RAM
- M8043, DLVJ1-M, 4-Line Asynchronous Interface
- M7940, DLV11, Serial Line Unit (SLU, Async)
A custom interface to the front panel is in the CD connectors of the first
slot.
I will post pictures of the boards on the RICM WWW site.
--
Michael Thompson