We have been testing and using the VF14M and AC701 tube replacements in our mics for a year now and have had very positive feedback from our customers. These tubes are super quiet when compared with original VF14ís and AC701ís and the tonal response is very accurate. RMS Audioworks

Phædrus Audio Electronic TubesTM are designed as drop-in replacements for scarce and expensive tubes used in famous, vintage microphones including: The Neumann U47, U48, KM54, KM56, M249, M269, M367, M49, M50, SM69, M269c, Schoeps M211b, M222, SONY C-220A, C-107, C-57, C-17B and others.

The electronic tubes are designed so as to not require any modification to these valuable microphones. See below for a short video, further information, applications and technical information.

Five models of Phædrus Audio Electronic TubesTM are currently available.


   
The Phædrus Audio VF14M and the The Phædrus Audio VF14T


NEW! The Phædrus Audio EF14M


The Phædrus Audio AC701k     NEW! NEC 6D-H3 triode


Phædrus Audio Electronic TubesTM are now available in two grades: a value grade - ideal for DIYers; and the Phædrus RED DOT Electronic TubeTM grade. Read more about RED DOT tubes here. Prices are here.




For more information on Phædrus Audio AC701 Electronic TubesTM contact sales@phaedrus-audio.com.


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