Converting TTL monitor to Analog

From: Iggy Drougge <optimus_at_canit.se>
Date: Tue May 8 21:18:59 2001

Richard Erlacher skrev:

>the old CGA monitor is not much other than a TV set. If you modify a TV set
>it will work fine with the CGA card. If you expect good quality text,
>however, you might want to remove the sound pickoff, as it will reduce the
>bandwidth to where the already crummy looking 80 column text is useless. The
>one thing a VGA isn't likely to do is sync at NTSC rates, which is what the
>CGA is designed to do.

Just to boast a little I got my second NEC Multisync 3D this weekend at 30
crowns. Very useful monitors, they sync down to 15 KHz and have also got TTL
inputs.

>I've often wondered what's meant by "TTL" in the context of monitors, since
>the EGA monitors have analog-compatible inputs. The only problem with them
>is the sync frequency at which they work. VGA monitors certainly aren't TTL.
> They're just as analog as can be.

I've often wondered what's meant by TTL, monitors or not. I understand that
it's some kind of standard for digital signal levels, and WRT monitors it's a
digital coding of colours through the use of one or several colour bits or
additional intensity bits.
But then what's meant by ECL? That's also used in some monitors, and
apparently in digital circuitry as well, or at least that's the impression
I've got from this list.

--
En ligne avec Thor 2.6a.
"LART is an acronym for Luser Attitude Readjustment Tool, and is generally a
piece of heavy hard material such as a cricket or baseball bat, hunk of pipe,
or 2x4 for the fine tuning of a luser's atitude. This is a noun that can be
used as a verb. If I say I lart someone, I mean that I am performing delicate
tuning procedures upon that persons head utilizing a  LART. An ICBM would be
considered an agressive LART."
Received on Tue May 08 2001 - 21:18:59 BST

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