SD45s 930 and 906 and U30B 840 by Frisco.org Posted on November 21, 2015 SD45s 930 and 906 and U30B 840 SD45s 930 and 906 and U30B 840 at Valley Park, Missouri on July 28, 1979. This entry was posted in RT Collection and tagged 840, 906, 930, Electro-Motive Division, General Electric, SD45, U30B. Bookmark the permalink.