analag

Audio engineering suffers from misinformation, disinformation, and downright lying more than most fields of endeavour.


Rossi

trafoless microphone preamp wish list
« Reply #241 on: July 27, 2005, 12:54:23 PM »
Thanks, analag, but I was actually looking for a source in Germany. Ordering from the States is too much of a hassle.
"I am not a number, I'm a free man!"
"Hahahahaaaaaa!!!!!"

analag

trafoless microphone preamp wish list
« Reply #242 on: July 20, 2006, 12:16:57 PM »
So did we ever get around to designing this pre...Brad, will you not step forth and do us the honor, of some technical talk?
If not, it's still good reading for the growing list of "newbs" around here.

analag
Audio engineering suffers from misinformation, disinformation, and downright lying more than most fields of endeavour.

Svart

trafoless microphone preamp wish list
« Reply #243 on: July 20, 2006, 05:53:33 PM »
Quote
analag wrote:

[img] use a discrete opamp instead of the chip. Excellent headroom and transparency.

Why? At first : rescale all resistors /10 and capacitors *10 around op amp
and use NE5534AP instead of TL072
And by the way; check that resistive network around op amp. May be input - impedance imbalanced. ?????????????????????

xvlk



to shift it into current mode?
Welcome to the GroupDIY leper colony! when something falls off, we just replace it with a tube!
occupation: General Electron Mayhem

Alesis X2 information repository:
http://www.theopiumdenproductions.


 

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