AKG C12 tube condenser microphone. This is a very early example, equipped with original CK12 capsule and GE 5-Star 6072 tube. Often used for recording vocals, acoustic instruments, overheads, room mic, etc. Recently checked by tech with clean bill of health. Authenticated by Klaus Heyne as all original, with period correct parts and accessories. Includes power supply, pattern switch box, swivel mount cable and mic case for safe storage.