The Wunder Audio CM12H (historical) Tube Microphone is a limited edition microphone system that uses the vintage-style power supply with a separate pattern-selector box and original-style interconnecting cables. The CM12H uses the larger Hiller T14/1 output transformer that was standard in the early C12. The hand made Capsule is an exact recreation of the original CK12 capsule. These boutique microphones are hand assembled in Texas per customers order.