Need Read-It! v1.02 and/or v1.1 OCR software/manual by Olduvai (forMac)

From: Ethan Dicks <erd_6502_at_yahoo.com>
Date: Mon Feb 24 12:50:01 2003

--- Marvin Johnston <marvin_at_rain.org> wrote:
> Hi Sellam,
>
> Just curious, what model PDP-8 do you have? I picked up some flip-chip
> modules (M series) and if you need any of that type, what are the card
> numbers you need? It looks like most of these were used on the PDP-8I/L.

The R-series are for the Straight-8 and the -8/S, as well as some
of the peripherals of the day (PT08, DF32, etc.) S-series are, IIRC,
performance-selected R-series modules (same PCB, qualified semiconductors).
There were also B-series (blue-handled), W-series (white-handled) and
a few others in common use during the mid-1960s.

As for the M-series, you are correct - they were the primary
constituents of the PDP-8/L and -8/i, as well as a few other
devices of the late 1960s. By the early 1970s, individual M-series
modules with specialized components (DEC bus drivers/receivers)
were common as parts of Unibus peripherals. The CPUs had moved
to Quad-height cards (OMNIBUS and Unibus).

I'm always on the lookout for M-series modules to keep my PDP-8/L,
PDP-8/i and RK-11C working. Respond to me offline with what handle
numbers you have and let's talk.

-ethan
Received on Mon Feb 24 2003 - 12:50:01 GMT