The historic electronic music magazine Synapse, now defunct, can be consulted and downloaded online.

• For a nice online viewer, with indexes that jump straight to the articles, go to this page on Doug Lynner’s web site (Doug was one of the editors of Synapse)
• For PDFs you can download of all except the very first two issues, go to this web page
• For GIFs of individual pages of most of the magazines, visit the Wayback machine on the Internet Archive

Thanks to the this page for info.