One more try - Can you ID this S-100 Serial board?

Tothwolf tothwolf at
Thu Oct 1 02:15:48 CDT 2015

On Thu, 1 Oct 2015, chocolatejollis38 at wrote:

>> Been trying to no avail to find any info on this 'MCT' S-100 serial 
>> card.
> Could this MCT be Modular Circuit Technology, the generic brand of add 
> on cards once sold in the JDR Microdevices catalog?

Possibly, I mentioned this in the other thread. JDR Microdevices started 
selling stuff in 1979 and this board looks like it was made in 1980. I 
think this board might eventually turn up in an old magazine article or ad 
(Radio Electronics, Popular Electronics, Kilobaud Microcomputing, etc) 
since it looks like it may have been a kit.

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