Telefunken VF14K | Replacement Vacuum Tube for U47 and U48 - Walmart.com
The VF14 Tube
Documents, presets, manuals Telefunken / Siemens VF14 M - Audiofanzine
History of the VF14 tube and the Phaedrus Audio equivalent VF14M
History of the VF14 tube and the Phaedrus Audio equivalent VF14M
Vf14 tube very rare version - Gearspace.com
Microphone Shop - I'm near finishing #VF14 tube replacement! It is real tube (nuvistor) inside and low-noise DC-DC converter to provide proper heater voltage. #U47 #M49 #U49 | Facebook