NTSC Monitor on //e & IIgs

["Bryan Parkoff" <nospam@nospam.com>]

    I am impressed what Michael Mahon asked questions in newsgroups earlier. 
I hooked up NTSC monitor on Apple //e and Apple IIgs.  I ran LGR, HGR, and 
DHGR screenshots for comparison.  I notice the difference.
    Apple //e shows three vertical lines in gray 1 and other three vertical 
lines in gray 2.  They are identical because of luminance.  Apple IIgs shows 
dark gray on three vertical lines and light gray on other three vertical 
lines.  Vertical line is used in LGR like vlin 0,39 at even/odd.
    I drew Deep Red, Dark Blue, Purple, and Dark Green vertical lines.  I 
turned off color switch to set monochrome on NTSC monitor.  I notice Deep 
Red and Dark Blue vertical lines are identical on Apple //e which it shows 
less bright white, but Deep Red vertical line shows less bright white and 
Dark Blue vertical line shows little darker white on Apple IIgs.
    You can do yourself to compare using monochrome NTSC monitor.
    I suspect how Apple IIgs does differently than Apple //e does.  Do you 
believe that Apple IIgs shifts out each one bit at 28MHz?  Apple //e always 
shifts out each bit at 14MHz.  It is a question to find out.

Bryan Parkoff