[Coco] speech pak question

[Robert Emery]

--- Bob Devries <bdevries at gil.com.au> wrote:

> I know that the Tandy speech and sound pak needed to be modified to work on
> a coco 3. I know that, 'cos I remember doing it a long, long, time a go (In
> a galaxy far, far away).
> 
> Can someone remind me how this was done. I seem to remember two (or more)
> ways. IIRC, I just changed the transistor to a 2N3906. Others may have other
> ideas.
> 
Not so much to make it work with the CoCo3... it worked fine with the CoCo3 at
normal speed. OS-9 L2 made use of high-speed though, and that's what the pack
needs to be modified for.

Robert Gault is correct that simply adding a capacitor is a much easier way to
fix it... that's how I fixed mine. Then I went a step further and made the
switch automatic, controlled by a Turbo LED circuit that detects when the CoCo3
is running at high speed.
http://www.geocities.com/theother_bob/coco_page/ssc_mod.htm

cheers,
Bob


		
_______________________________
Do you Yahoo!?
Shop for Back-to-School deals on Yahoo! Shopping.
http://shopping.yahoo.com/backtoschool