Subject: Re: [stella] Krokodile Cart prototype review From: Chris Wilkson <ecwilkso@xxxxxxx> Date: Fri, 27 Feb 2004 14:09:12 -0500 (EST) |
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/
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