Re: Apple IIGS Stereo Sound Card - Interest?

[Polymorph <polymorph69@hotmail.com>]

On Oct 31, 10:16 am, Drew <goggled...@gmail.com> wrote:
> Hi,
>
> I have been working on reproducing the TDX Stereo Sound card using the
> FAQ information as well as the slight modification using a quad amp as
> already outlined by Polymorph.
>
> My next stage is to get from breadboard and on to PCB in some form via
> copper board etc. I am contemplating taking this further and actually
> to get this fabricated and offer them back to the community at cost
> for component and manufacture etc (i am not doing this to make money
> lol). I still have things to sort out in terms of cable placements
> etc, but i want to gauge interest if anyone would actually be after
> one. I kinda reckon it will come to something like £30 - £40 for a
> card....not really sure tbh.
>
> If anyone is interested drop me a reply so i can see if its really
> worth me getting them made etc.
>
> If anyone has any other improvements to the TDX/Polymorph version then
> drop me a note and I will try and encompass it into the card.
>
> You can follow my progress athttp://drewbiegs.blogspot.com
>
> Cheers
> Drew

I always planned to make a run of these things too, except I never
managed to find the time. I am considering making another one for the
kids IIgs though, but if your price is right (and if I'm feeling
particularly lazy), I might even buy one of yours. Alternatively, I
might go into competition with you... lol  :-)

Maybe you could record something from the IIgs using the TDX and
compare the output to mine. The easiest way to do this is to blug the
output of the TDX into the line-in of a PC (or Mac) and record it
using whatever software you use to record sounds. I have mine
installed in a ROM3 IIgs, so I may get cleaner audio if yours in a
ROM01. But I have a ROM01 here I could hook up too, if required. I
actually have my IIgs permanently hooked up to the line-in of my
desktop so that it pipes through my Logitech 5.1 speakers (albeit only
in stereo). It sounds awesome!

I changed my board (ages ago now) to have the 3.5mm jack mounted to
the back of the case as opposed to directly on the card like it is in
the pics on my site. I hacked an old PC slot cover (the metal thingy
you use to cover unused slots) and screwed it into an unused slot
opening on the IIgs. But this just rounds out the real "hacker" look
to mine. I'm guessing you will want something with a tad more
polish.  ;-)

BTW, as a comparison, I remember mine costing around AUS$20 for the
components, when assembled on a prototype board. So I expect a
professionally done PCB would cost quite a bit more.

Anyway, good luck! I look forward to seeing the end result.

Cheers,
Mike

http://apple2.sytes.net/