Halcyon & Tek 834

Almost forgot... a Halcyon 502B universal test set. I'm not completely sure what this is, but the front panel inclines me to believe it's used for testing DSx loops and such. Best of all, the Tektronix 834 datacom test units include a full range of add-on rom packs for BISYNC ascii, BISYNC ebcdic, SDLC/SNA, Link Test, and general purpose rom pack. Each unit is in a nice tek blue leather carrycase and includes operation manuals on the main unit, each of the rom packs, keyboard overlays, and even product brochures. Schweet :) So if anyone needs owner/operation docs on the unit or any of those rom packs, just let me know. One of the 834's works great, the other two appear to have power supply problems. Would anyone happen to have schematics or PS repair info for these? It'd be nice to get the other two up and running. Most suprisingly the tek owner manuals for the 834 don't have schematics! Jay West