converting RGBHV to RGBS -- anyone have 74HCT86's?

On Wed, Sep 15, 2010 at 12:15 PM, Keith M <keithvz at verizon.net> wrote: I'm not at home yet, so I can't check my manuals. that schematic shows 74LS86, any reason why you want to switch to HCT ? I have boatloads of 86's and LS86's That schematic is VGA->RGBS which is the opposite. I use that converter board too. It does goes down to 15khz, that's how arcades are converted to use LCD's. But I haven't used it yet with my 1000. What I understand is that you would want to use this to be able to display the unsupported screenmodes at the varying scan freq's. They do make a Amiga RGB to VGA Monitor Adapter for alot cheaper, about $25 http://tinyurl.com/295vhzc The Amiga is 31.5Khz. I was looking to get one for my 1000. But since this is a straight wired adapter, it only supports the OS supported screen modes at the one scan freq. This is the rgb connector pinout if you want to wire it http://tinyurl.com/28w8spn =Dan across the river in Pittsburgh --http://www.vintagecomputer.net/ragooman/