Re: //c composite output questions

[Mitchell Spector <mitch2gs@hotmail.com>]

"Michael J. Mahon" <mjmahon@aol.com> wrote:

>BLuRry wrote:
>> Well, that's what I feared.  So what would I use to fix the signal to a
>> "standard" ntsc timing?  A genlock device of some sort?
>
>That would do it.  A VOC will do it for a slotted Apple II.
>
>Another possibility would be to get an older, used VCR and record the
>video output (at Standard speed, of course), then play it back.
>
>Since the sync signal of the input signal is not recorded, but only
>phase-locked to, and the VCR regenerates the sync and the timing
>on playback, it ought to work fine.  Not real-time, but maybe useful.

    Close to the same topic, I just picked up an Apple IIc on the weekend
(free! a local shop was giving away 286 notebooks and there was a IIc in
the pile) and tried hooking its composite output to my TV and a Commodore
monitor. Oddly High-Res colors look fine, but Low-Res and Double-Hi-Res
colors seem out of whack, especially: yellow, brown and dark green. I have 
to push the display's tint control to as far as it can be adjusted to resolve
that (from what I recall, my Apple II Plus clone had the same issue).
 
    I tried my Apple IIGS's composite output to the same displays and there
is no need to adjust the display's tint, yellow is yellow, brown is brown
(and more solid looking than the IIc). My VOC gives the same results,
although obviously its a cleaner image with no bleeding around text.
The colors aren't as saturated through the VOC though but that's 
probably because its doing hardware anti-aliasing.


Mitchell Spector