03-07-2015, 03:33 PM
This link popped up on the Delaware Valley Historical Radio Club mail reflector.
http://www.skywaves.ar88.net/Docs/default.html
An RCA 1921 publication "with Instructions for Continuous Wave Operation." The link is to the full publication.
http://www.skywaves.ar88.net/Docs/default.html
An RCA 1921 publication "with Instructions for Continuous Wave Operation." The link is to the full publication.