The Lawson L47fet is a modern interpretation of the Neumann U47fet. Both are transistor (FET) condenser mics with large-diaphragm capsules and fixed cardioid patterns. The capsule in the L47fet was designed by Gene Lawson, and is based on the M7 capsule originally used in the U47/U48 microphones. Note that the M7 used a relatively thick PVC diaphragm, whereas Lawson’s capsule uses a very thin (3-micron) diaphragm mostly likely made of Mylar.