SATURN SOUND  Recording Services

 

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Products - Replacement Valve

   
RV-14m

The RV-14m valve, is the ideal replacement for the "Obsolete" Telefunken VF14m, as used in the famous Neumann U47 / U48 microphones.

Being of the same physical size and appearance to the original Telefunken VF14m, the RV-14m is a direct "Plug-in" replacement. Provided that the microphone, lead and PSU combination, is in "Original" condition, then no electrical modifications are required - Please see "Guarantee"

Each valve is rigorously tested at various stages of production and carries it's own "Serial Number".

RV-14m, "Design and Construction" .

 

RV-14m Valve

 
Customer Feedback

"..... the overall sound is the classic 47 ....."

Sphere Studios, London

" It is really remarkable how closely it sounds to the VF-14. The only difference I could tell, was a SLIGHT extension on the top end, that sounds even better than it did before !!!! ..... the Microphone noise is lower as well "

Mike Bridges, Germantown Studio, Nashville

" Initial thoughts are very positive. It sounded very similar, almost identical to my other U47 with a VF14 "

Dennis Weinreich, Videosonics Cinema Sound, London

" We have previously purchased a RV-14m valve from you. It is absolutely fantastic ! "

Marcus, Visual Sound, Sweden

 
Price - £ 290.00   including delivery and insurance within the EU.
 

PLEASE NOTE - Each RV-14m is "Guaranteed for 1 year", from the date Invoiced. However, the use of any RV-14m in a modified microphone / PSU combination, that has not been electrically approved by SATURN SOUND Recording Services, will "Invalidate the Guarantee".

 
"Non Standard" U47 / U48's etc.

In cases where electrical modifications have taken place, to the microphone e.g. a non-standard valve type is fitted etc, then a suitable "Retro" modification is available. Thus taking the microphone back to it's original "Neumann" design/circuit.

 
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Technical "Comparisons" between the RV-14m and VF14 valves
 
Test RV-14m VF14
"Gain" @ 1kHz +2.5 dB 0 dB
"Self Noise", measured 30Hz-20kHz -9 dB 0 dB
"Lower" -2 dB point, ref' to 0dB @ 1kHz 51 Hz 42 Hz
"Upper" -2 dB point, ref' to 0dB @ 1kHz 35 kHz 37 kHz
 
Note
The above measurements were taken using a "Original" Neumann U47 body / pre-amp and NG type power supply.
The "Test" signal was applied via a 75pF capacitor, to simulate the capacitance of the KK47 capsule.
As I have no access to a "Brand New" VF14, the VF14 used for testing, was the "Best One" out of a collection of 9 valves. Some currently in use in microphones, the rest being "As New" spares.
 

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