GUBBINS@RADC-TOPS20.ARPA (02/07/84)
From: Gern <GUBBINS@RADC-TOPS20.ARPA> Russ & all, Based on your latest info on the SRI sound board, stating that it is (loosely) based on the design of the GI spec sheets design: If this is the case then it will NOT work in a Zentih Z-100 at 5 MHz. The best it could do would be 4MHz, unless I/O wait stuff is added. I've been all through that with my design on the Z-100 and I have had a radically different design that is FAST and still worked at 5 MHz after I ripped out (gently) my I/O wait circuits. My redesign to incorporate I/O wait stuff eliminated my need for I/O wait suff... Anyway, after 4 months of grief, It works, no detectable distortion, pure sounds (The GI audio output recommended circuit left much to be desired, so I did it my way...). The thing works fantastically, much beyond what I was hoping for. I have what I wanted, and now my friends want one too. Cheers, Gern -------
SHahn@SUMEX-AIM.ARPA (02/08/84)
From: Sam Hahn <SHahn@SUMEX-AIM.ARPA> Gern: Was your previous message an announcement of availability, either of complete boards or of the design? -- sam -------