[TowerTalk] Telex-Hygain commercial/military rotator

[Steve NR4M]

Hello all,

I have one of those really large, really heavy Telex/Hygain rotators 
from a military tower system.  It is 12" x 15" x 22" long and probably 
weighs 120 pounds, or so.
Internally there is a A/C motor, a couple of gear boxes a #50 (#60?) 
link chain, selsyn, limit switches and 3 relays.

Would love to find a schematic on this beast, but all Internet searches 
have been inundated with current Hygain stuff.
I tried the only number I found on one of the cover plates and it got me 
nowhere.

Would appreciate any info on this box, or where to look.

-- 
73 de Steve, NR4M