Heh...you *know* I have to suggest buying a CyberTech Video Card from
Atari2600.com. :P
If you want the best your 2600 can be, get that one. You'll be glad.
The circuit you pointed to has a few problems. One obvious problem is
the output impedance is not 75 ohms. Easy to fix, but there are some
other problems that I won't go into now. If you want to build one
yourself, build the circuit by Thomas Clancy. It's available in the
2600 FAQ on AtariAge. It will give you a nice reliable picture, though
it's not spec and can't be easily adjusted on the fly.
Building a daughtercard is a good idea. It's much easier to build, and
safer for your 2600. It's also easier to modify or repair a daughtercard
later. And there's always the bonus of being able to revert to a stock
2600 if you need it.
-Chris
On Fri, 27 Feb 2004, Adam Thornton wrote:
> On Fri, 2004-02-27 at 11:38, Chris Wilkson wrote:
> > I know just about everything there is to know about
> > the 2600's video.
>
> Well, OK then.
>
> Which composite video mod do I want to implement? I have a Rev B
> six-switcher. I'm looking at the second schematic from Raiku's World:
> http://home.earthlink.net/~awbrown/my%202600%20amp%202.gif
>
> I'm probably going to pull the TIA out of the socket and build whatever
> I build as a daughtercard with a plug-through socket (does that make
> sense to anyone else?) so I can do an S-Video and composite video mod
> on the same bit of perfboard, and switch them without having to solder
> anything directly to my TIA or its socket. If possible I'm going to do
> this as a reversible mod, and not permanently affix anything to the 2600
> motherboard.
>
> Adam
>
>
> ----------------------------------------------------------------------------------------------
> Archives (includes files) at http://www.biglist.com/lists/stella/archives/
> Unsub & more at http://www.biglist.com/lists/stella/
>
>
----------------------------------------------------------------------------------------------
Archives (includes files) at http://www.biglist.com/lists/stella/archives/
Unsub & more at http://www.biglist.com/lists/stella/
