I just got this email from Jack, looks like some parts in the BOM were given as SOIC chips.... I will have a look into this tomorrow, but just the same, check that you are ordering through hole DIP parts.
Jack Rubin wrote:
Just reviewing the "Build Notes and BOM - REV 4" and there are a bunch of SOIC parts listed (all the 74LSxx with DR suffix). Is there a revised BOM or is this what people are working from? Might be a few surprised builders if they haven't done this before.