Control Data (?) circuit boards

Mike Stein mhs.stein at
Mon Sep 14 15:53:10 CDT 2015

Thanks for confirming that these cards are indeed
from a CD display unit; here's the model info:

But after all that I take it they're of no use to 
anyone and I can scrap them with a clear 


----- Original Message ----- 
From: "Al Kossow" <aek at>
To: <cctalk at>
Sent: Thursday, September 10, 2015 1:18 PM
Subject: Re: Control Data (?) circuit boards

> On 9/10/15 9:23 AM, Mike Stein wrote:
>> Not very interesting
> backside is all-telling.
> DD12092 is the part number. DD == "Data Display"
> the display division of CDC
> they are the form factor that DD used. I picked
> up a 3291-B display
> controller manual from Billy Pettit yesteray,
> and is uses discrete
> cards in the same shape.
> cans are Fairchild, circa 72/73

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