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NEWS
Telefunken VF14K U47 tube recreation
2008.01.14
Telefunken | USA™ develops new VF14K valve for U47
In Berlin, Germany 53 years ago, production of the rare VF14 tube that
was used in original Neumann U47's was discontinued. After several
years of research, design and prototype development, Telefunken USA is
proud to announce that they have completed the first 100 test tubes of
the new VF14K. Each tube has exceeded the 10000 hour long test time.
“We knew that without suitable microphone grade tubes, our effort to
build the best microphones in the world would come to an end after our
small inventory of NOS tubes would be gone, putting our historical
replica of the U47 at risk of being discontinued. With that in mind, we
began our tube development in late 2003, and after a very difficult
start, we produced our first prototype tubes in late 2005. Currently,
the VF14K tubes are hand-built in our laboratory, and are exclusively
for our new U47AE microphone".