Cool set! You can get the schematic and troubleshooting information from the 1949 Beitman's manual which you can download here:
http://www.eskimo.com/%7Ep0lez1/beit...itmanhome2.htm
If he's removed the 1949 volume (Scott is running low on space...), I can send it, but it's 9 megabytes - maybe I can extract the two pages...