>Didn't check the MicroPDP-11 book on this one. All the 11/53 boxes I've
>seen either had 11/23B or the earlier no ram-nonPMI 11/73 cpu in them.
>Apparently that was a common configuration or the common path for the
>used boxes. in any case most of the 11/23 or 11/73 cpus work quite
>nicely in that box.
That may be the *boxes* which have been marked that way... which sounds
like someone was mislead (or the system reconfigured without someone
knowing)
*NO* 11/53[+] board that I know of has EVER had an F-11 on it. They
have all had J-11 (DCJ11) chips. The 11/53[+] has always been a quad
width board with two serial lines and either .5Mbyte (11/53) or 1.5Mbyte
(11/53+). It is known as the KDJ11-D (the -A is the dual-width
11/73 board, the -B is the quad width 11/83,84 board and the -E is
the quad width 11/93,94 board).
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '_at_' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL:
http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
Received on Fri Sep 24 1999 - 08:25:14 BST