The M 147 Tube* is a dual-diaphragm condenser microphone with cardiod characteristics.
This makes the M 147 Tube especially well suited as a vocal mic but in addition, it is a superb spot mic for all types of musical instruments. and it's extremely low noise tube circuitry makes it perfectly suited for use in modern recording chains, both analogue and digital.
The tube is complemented with a transformerless output circuit design enabling the mic to feed long microphone cables without any coloration.Comes with PSU
Here is the Neumann M147 product information