Here are some useful Internet links, I am hopeful we all can add to this list! I'll add to this from time to time. Two to start off....
For the President HR-2510 and Lincoln: http://www.normsweb.com/tektips/lincoln.shtml
General information from a Great CB store! https://www.bellscb.com/cb_radio_hobby/index.htm
For the President HR-2510 and Lincoln: http://www.normsweb.com/tektips/lincoln.shtml
General information from a Great CB store! https://www.bellscb.com/cb_radio_hobby/index.htm