Started in the early 70s doing alarms, lots of tube and wire frames!! painted bell boxes, self recorded tapes for auto dialers, dry batteries even in the SAB, some great panels at that time all key operated, no codes, so read with interest when others talk about the old Shorrok panels and mod 88 units, G Lowe, A&G, AES, Castle, Racel, GGS, to name a few.