[sdiy] VCS3 PA234

[karl dalen]

The LM386 are noisy!

JFKD
 --- Magnus Danielson <cfmd at bredband.net> skrev: 
> From: Yves Usson <yves.usson at imag.fr>
> Subject: [sdiy] VCS3 PA234
> Date: Sat, 16 Oct 2004 16:06:42 +0200
> Message-ID: <1097935602.41712af210411 at webmail.imag.fr>
> 
> > Hi
> 
> Yves,
> 
> > In the output module of the VCS3 there an out put amplifier
> > based on the PA234 IC. This IC is obsolete, in my VCS3 cloning project
> > I will probably replace it by a LM386. However, in order to adapt the
> > design to the LM386, I need to know more about the PA234.
> > Does somebody in the list have the datasheet or some technical notes
> > concerning the PA234 ?
> 
> The Mark II VCS-3/Synthi-A uses a 741 based design, but there you *really*
> need
> a 741. However, some seems to prefer the PA234 based design.
> 
> Have you used the Mark I or Mark II PSU design? I recommend you to use the
> later. All in all, use the Mark II variant of the A board.
> 
> Cheers,
> Magnus
>