Hi Brian! Thanks! The ECB Cassette IO board schematic and PCB layout can be found here on the N8VEM wiki http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder¶m=ECB%20Cassette%20Interface I would be trivial to implement this on an S-100 board. Even a prototyping board since the circuit is quite small. Thanks and have a nice day! From: n8vem...@googlegroups.com [mailto:n8vem...@googlegroups.com] On Behalf Of Brian Marstella Hi, Steven, Sounds like Tarbell Cassette Interface Board. It was possible first board used with Kansas City format and it was designed for S-100 bus system. There is a very good manual available at s100computers website. I think it may good idea to redesign S-100 based cassette interface circuit with update components. Because during good old days, there was no LS series TTL when Tarbell designed the famous board. Good idea ??? -- |