Re: Stupidsonic Sound Card

[withed85110@mypacks.net]

On Jun 2, 3:50 pm, CC Rider <alask...@yahoo.com> wrote:
> On Jun 2, 2:25 pm, aiiad...@gmail.com wrote:
>
>
>
> > On Jun 2, 10:55 am, CC Rider <alask...@yahoo.com> wrote:
>
> > > Hello,
>
> > > Can anyone point me to some documentation or information about this
> > > card.  The only thing I have been able to find is a photograph at
> > > Apple2.org.  Thank you.
>
> > > Clay Cummins
>
> > for IIgs sound cards, you plug em in, attach the ribbon cable
> > to the Ensoniq connector on the motherboard, and you'll get stereo
> > output....
>
> > dunno if supersonic has audio input...  you could try AudioZap
> > to see if it'll recognize a stereo INPUT
>
> > Rich
>
> Thanks for the suggestions Rich.  One correction, it is the
> sTupersonic card, not the card from AE.
>
> Clay

I'm not sure what other info you want about the card and why? but this
is what I have so far.....

It's named the SuperSonic by MDIdeas Inc. The jumpers on top control
what "voltage" level the card puts out of the audio jack. The LN is
for Line Level feed from direct from the OP AMP the other two are Hi
level and Lo level outputs from the two audio amps.  As I currently
have one sitting on the desk in front of me, and I'm working on a
schematic of the card, I'm about 98% done in working it all out. It's
basically the "TDX" based design using a 74HC4052A for the MPX to a
LF347 OP AMP for the line level out put, and the two LM386 are for the
"high power" out put.

You would need the very rare MDIdeas's Digitizer daughter board for
the card to have sound recording input.What I find interesting is that
the card's edge connector has a pin that's connected to pin 41 on the
expansion slot's edge connector. (Anyone have an idea why, also who
was "CBR"?)

Not bad for a 20+ year old card.

Ray Eiser
p65c816