Many have often stated that Russell got his teachings from the Seventh-Day Adventists; in fact there is no record that Russell ever attended any of the 7th Day Adventist meetings or that he had any fellowship with any members of that organization. Usually, most people associate the word Adventists with 7th Day Adventists, and don't know the difference.
Russell did accept many teachings similar to the Second Adventists, although he personally did not fully subscribe to the teachings of any Adventist group. He certainly did not accept the "end of the world" teachings held by most of the Second Adventists, that is, that the planet earth was to burned up and only a few -- the saints -- would be saved while all the rest of the world would be eternally destroyed.
He did work with, and spoke highly of, several adventists authors from whom learned much. Some of these taught the "ransom for all" in almost the same manner that he believed. He worked somewhat closely with N. H. Barbour, but did not agree with Barbour concerning the resurrection body, as well as some other points. When Barbour started writing material that Russell interpreted as denying the ransom, Russell decided that he could no longer work with Barbour, and thus Russell began publishing "Zion's Watch Tower".