Historical information

Provides information on the General Electric B series controllers, including BA, BA-2, B3, B4, B8, B13, B16, B19, B23, B24 controllers. Lists the various parts, with some illustrations. Has sheets giving the drum development or connections as the controller is moved through the various notices. The B23 type controller was used on Melbourne Maximum Traction bogie trams.

Significance

Yields information about early General Electric controllers

Physical description

Document 32 pages printed on quarto paper within a cardboard folder, with pages 3 & 4 missing - parts catalogue No. 4724A of Oct. 1910.