Possible Philco Transac 2000 board

[tgarnold]

This is an interesting early board that looks like it has the same output format as a couple of other Transac 2000 boards I have found on-line. The contacts are only on one side of the board. Is anyone familiar with any other computers that used this same format?

 

[snhstq]

This is an IBM SMS card PN 2481207
See https://static.righto.com/sms/2481207.html

 

[tgarnold]

Thanks for the great information! Too bad it doesn't say what computers it worked in. At least I have a great place to start.

 

[Qbus]

That IBM SMS card database is ineradicable! thanks for turning us on to it. Will waste hundreds of hours here at work looking at that.

 

[SMichelsen]

Back in 2008 I found these transistors on ebay. The seller's address was Colorado Springs, CO. It turns out the seller was Donald Mueller, who taught at the Air Force Academy and co-wrote "Fundamentals of Astrodynamics". So then I took him at his word when he stated that these transistors came out of a Philco 2000 installed in NORAD at Cheyenne Mountain.