Barry Mishkind of oldradio.com pointed me to a copy of the schematic on that website. The URL is http://www.oldradio.com/archives/hardware/Collins/300J-2_skim.pdf Philip VJB wrote: > Phillip, > I cross-posted your link and request for schematics on > amfone.net where a lot of people will see and perhaps > can help out. > Thanks for sharing the story with us !