Help wantied in identifying Williamson tube preamp circa 1959?
I could use some help identifying an old tube premp that I recently purchased. It is marked "Williamson Model G???, L.A., 16 CALIF." Google comes up with nothing of use. Any information about this unit/company would be greatly appreciated. A link to a schematic/manual gets you a friend for life.
See photos at: http://www.canuckaudiomart.com/forum/viewtopic.php?f=9&t=28299.