View Single Post
  #34   Report Post  
Posted to rec.audio.tech,sci.electronics.components,sci.electronics.repair,sci.electronics.basics
Don Pearce
 
Posts: n/a
Default Is my LT44 transformer suitable for audio (de)coupling?

On Fri, 28 Apr 2006 15:36:00 +0100, "Dave Plowman (News)"
wrote:

In article ,
Don Pearce wrote:
But being a total of approx 13k will have little effect across 150 ohms.


True - I was just trying to correct your 1.2k, which while hardly a
typo was certainly a slip of the decimal point.


No - that's the input impedance of a Neve desk - one of the classic
designs. Others too. More modern ones may be higher.


One more thing - the Neve mic pre has a pretty poor noise performance.
At -128dBu equivalent at the input, that is about 6dB above pure
thermal noise. That is 4 or 5 dB more noise than they should be
achieving.

d

--
Pearce Consulting
http://www.pearce.uk.com