The Upton C12 microphone is based on the classic AKG C12 condenser microphone. It features all point to point wiring, the Upton ck12 capsule and a choice of either our T14 transformer or our slightly larger variation on this transformer. This microphone features a power supply with point to point wiring and provisions for a fixed bias voltage on the vacuum tube, which is the way the original C12 was set up.