View Full Version : 10 Pin connector for TI-74

December 17th, 2017, 10:03 AM
FYI, I found a 10 pin inline connector that fits the TI-74 dock/hexbus connector nicely at Jameco:

https://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10001&freeText=2177627&langId=-1&productId=2177627&storeId=10001&krypto=cX7O%2BPWqOi70O0yPkqywfecOHUSr3U%2FPJLb94Yz Eg0wz6shnAZmufvDpqfrk7QP%2FIqYDewVcoiRUFPGMPUSmC13 qcPFNK71t%2Fq3ZQHvvHu8%3D&ddkey=https%3AStoreCatalogDrillDownView

I'm considering building up a PCIF from the available schematic, and the first priority was to have a good interface connector.

Does anyone have any experience with building up your own PCIF? I see there's interface software for the PC available here:


and here:


Has anyone been using this? I see it is supposed to run on a PC with a parallel port - I still have a few laptops that have parallel ports, so I thought this might be something to play around with.


December 18th, 2017, 06:39 AM
If you do, how about making one for me also? Obviously, for a reasonable price.


December 31st, 2017, 05:59 AM
Does anyone have schematics or some good hires pictures (and values for components) of the CI-7 and PCIF cards?

I’d love to build at least a cassette interface. The two chips on Datamath appear to be standard ones. I need a higher res pic though and the back of the board as well. That just tells me the logic for cassette is in the 74 unit’s ROM.