Extremely rare New Old Stock (NOS) VF14 valve from Telefunken, originally produced for the legendary Neumann U47 and U48 studio microphones. Still factory sealed in original packaging — never installed, never powered.

This is the authentic tube that shaped the sound of Frank Sinatra, The Beatles, and countless golden-era recordings. Known for its warm, smooth character and unmatched low-noise performance in microphone applications.

Each unit is individually tested for transconductance & emission over original datasheet specifications. Only a handful remain in this condition worldwide.

Available as single units, with full provenance and documentation upon request.