Telefunken-Neumann VF14 tubes VERY RARE-for U47 / U48 Microphones-TEST GOOD
I bought these VF14s and 2 Neumann U47 microphones from a major Hollywood studio about 45 years ago. One of the U47s is listed at406789585615. These tubes were discontinued about 1955. BUT, even a "new" one is 70+ years old!