[sdiy] Adding audio channels, to increase S/N

[Peter Cornell]

There is an example of this in the Amek M2500 mic pre.

http://www.gyraf.dk/index.html -->  Resources  --> Amek M2500

Regards
Peter


----- Original Message ----- 
From: "Byron G. Jacquot" <thescum at surfree.com>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Sunday, September 07, 2003 6:07 AM
Subject: Re: [sdiy] Adding audio channels, to increase S/N


> >I'm just digging through my collection of old Elektor mags (again). 
> >They used this technique quite a few times. For instance, in a 
> >moving-coil-pickup preamp they paralleled eight one-transistor 
> >amplifiers (March 1978). In another article (July/Aug 1977) the 
> >paralleling of four opamps is suggested. The latter article is by "Mr 
> >Formant", C. Chapman.
> 
> And this suddenly jars my memory a little.
> 
> About a year ago, didn't our very own Paul Shreiber post some photos of a
> hifi amplifier he was building, with some absurd number of parallel
> transistors?  Maybe 50 or 100?
> 
> I've also soon it done comercially in microphone preamps in some older
> mixing consoles, but usually only doubled up transistors.
> 
> Byron Jacquot
> 
>