--- "Snook, John R" <[EMAIL PROTECTED]> wrote: > I have been thinking about if it would be possible > to make a gray scale adapter to run off any SE30 PDS > color board. > I think it would be possible, but how would you do > it? > This is how it would work. > Let the Mac analog board run the yoke. > Replace the circuit board that goes on the back of > the CRT with a custom one that plugs in to the SE30 > PDS color board output. > > What would keep this from working? > How can we make this work?
The black and white screen is running 1 bit video. When the electron gun is on, the screen is white. When it's off, there's black. What you have to do is chuck the 1 bit on/off circuitry and build a driver board for the electron gun that can run up to 256 different levels of power to the electron gun. (8 bit greyscale) I've no idea how the Micron Exceed internal greyscale adaptor did that, but I bet it would be a good starting point. I think someone has it figured out and a schematic drawn up. 'Course building one just like that will only work with certain models of the Micron card. ===== "I'm sorry, but you can't list fish as 'durable goods' in your GDP statement." "What if we freeze them?" __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com -- Vintage Macs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac <http://lowendmac.com/lists/support.html> Vintage Macs list info: <http://lowendmac.com/lists/vintagemacs.shtml> The FAQ: <http://macfaq.org/> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/vintage.macs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
