The Navy Radio web site has scans of 1794WD and 1795WD which are the actual wiring diagram and schematic diagram, respectively for XRT96 and XRT107 tables for 19-type sets. Also 2143WD is probably relevant, wiring diagram of Model 15 printer with keyboard perforator. Then there are 2161WD and 2162WD schematic and actual for Model 19 table.