Well, the 7730 isn't year-week as some makers do. The technology wasn't far enough along in '77 to produce the 1010/2010 in 77. Once the WD179x series became popular, Western and SMC did a lot of trading, Western getting rights to produce some of SMC's comm devices, and SMC getting the rights to build 179x parts, which were very much in demand. The deals continued between the two companies, but Western didn't have the 1010 until '82, and didn't start full-scale production until late that year. The 2010 was on more or less the same time-table, but there were technical and political problems within the company that delayed the availability of the 2010. In '77 the ST506 drive wasn't even available yet. They did start and specify a 1010-08 but I've never seen one. You'll have to try that part you have in a known-good application just to see whether it's the same part. Dick ----- Original Message ----- From: Eric Smith <eric(a)brouhaha.com> To: <classiccmp(a)classiccmp.org> Sent: Sunday, October 29, 2000 8:06 PM Subject: Re: SMC 2010, 2009 & 3007 dip chips??? Is