Re: Convert composite Apple mon into RGB?

[irsman@iastate.edu (Ian Schmidt)]

In article <336386$aj4@gap.cco.caltech.edu> nathan@cco.caltech.edu (Nathan Mates) writes:
>In article <334tha$kml@hermes.unt.edu>,
>Phillip "Ty" Young <tyoung@jove.acs.unt.edu> wrote:
>>Hi.  I recently acquired an AppleColor Composite color monitor, w/ one 
>>typical RCA-jack for its input.  Now, I know you can get some use out of 
>>such a beast, but the colors rendered here really sort of STINK and the 
>>bleeding onto white REALLY STINK.  

>   The connector has a few more pins, there are 3 electron guns in
>the picture tube (not 1), and the intervening circuitry supports these
>rather drastic changes. Other than that, you might be able to salvage
>and reuse the case and power supply. :)    (Hint: there's a huge
>difference between a TV and a RGB monitor; don't bother changing them)

Actually, Trinitron RGB monitors have 1 electron gun also.  This
eliminates the need for a bulky convergence correction system, as well
as defects like red fringing seen on GS RGBs.  Any TV or NTSC monitor
can be converted into a perfectly fine RGB monitor that runs at the
60/15.7 scan rates, but it's fairly involved (much moreso than
converting a TV into an NTSC monitor since the internal voltages for
R/G/B after the demodulation matrix are generally a lot higher than what
the GS outputs, among other considerations).

-- 
Ian Schmidt - irsman@iastate.edu - irsman@rush.cc.edu - BAZ IS RIGHT! - INSOC:
"If you've got to belong to something, belong to us and we'll make you PC"