ET-3100 / ET-3100A / ET-3100B Schematics This page is under construction.
Heathkit ET-3100/A/B Support Page
Heathkit of the Month - ET-3100 Series Article: (HotM #129)
Thanks to: Steve Gladstein - N8FH, Chuck Penson - WA7ZZE, Santos e Silva and Gerhard Wagner - DF1DA for help supplying the schematics, parts lists and catalog pages.