Rectifier RA-36-J, K, L - USA Voorschrift, Technical Manual, 11-951 Line unit BE-77-A and line unit BE-77 - USA Voorschrift, Technical Manual, 11-359 Storage batteries for signal communication except those pertaining to aircraft - USA Voorschrift, Technical Manual, 11-430 Keyers TG-10-A, TG-10-B, TG-10-C, TG-10-D, TG-10-F, TG-10-G, TG-10-H and TG-10-J - USA Voorschrift, Technical Manual, 11-447