My thinking is that it is a cryto device. They used such to
change keys for encoding and decoding.
Although EAI did a lot of analog stuff, it wasn't uncommon
for many different companies to do gov contracts.
As an example, during WWII, Lionel Train company made
ship's compasses. These couldn't be more different.
Dwight
________________________________
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Cory Heisterkamp
<coryheisterkamp at
gmail.com
Sent: Thursday,
January 12, 2017 12:10:33 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: What's the rarest or most unusual computer-related item do you own?
Given the topic, I have this rather *unique* punch card reader, if you want
to call it that. It is marked EAI but that's where the trail turns cold.
Perhaps used as a microcode source? All holes are read simultaneously via
individual switches. If someone has seen one before, please speak up. -C
http://www.radar58.com/reader/IMG_2894.jpg
http://www.radar58.com/reader/IMG_2895.jpg
http://www.radar58.com/reader/IMG_2896.jpg
http://www.radar58.com/reader/IMG_2897.jpg