RMS Audioworks
Custom High End Tube Microphones 

U47 Resistor Boards

We are also offering our reproduction of the original U47 and U48 resistor boards.  These are a direct replacement for the original boards.  Custom made for RMS Audioworks, these boards are the original phenolic board material and modern tin plated solder tabs.  We are selling these for $100 per pair. 

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