Ap 400 A

Dear all,
I am a new member in this group. I have a problem with my AP 400 A and looking for manuals to check the amplifier and servos. My Skymaster is a 1973 T337G-P S/N 0124 D-IKSW. I learned from the board that Bob has manuals. Is it possible to get a copy ore to buy one?

Happy landings

Jonny