Ok, here are the details on the Northern 565. It is an Avocado 565-H, lighted 5 lines plus hold, exclusion key (pull up left hook switch), and is outfitted for 25 pair lines.
Despite the lousy photo, it is a normal avocado colour, and both the colour on the housing and handset match.
Amazing the colour differences between the actual phone and the lousy photo she sent me. I am glad to see them, though, as the phone is great!
I played around with the teletype loop supply today, replacing its missing fuse holder and shortening the power cord to get rid of a bad section. It is capable of loops up to 100 ma. and adjustable by a rheostat and on-board meter. It has a reversing switch to allow reversal of loop line polarity. 4 jacks are included on its panel to allow interconnections of multiple machines.
Dave