16.017 What is a "composite video monitor"?
Description
This article is from the Apple II Csa2 FAQ, by Jeff Hurlburt with numerous contributions by others.
16.017 What is a "composite video monitor"?
A composite video monitor is a display which requires a composite video
signal such as that output by an Apple II computer. The signal is called
"composite" because it is a mix of Video, Horizontal Sync, and Vertical Sync
signals. A color composite video signal will, also, include Color Burst. These
signals are separated inside the monitor.
The cable for connecting such a monitor is a single wire surrounded by
insulation with an outer shield (usually braided copper) covered by insulation.
The inner wire carries the signal, the shield is at 'ground'. Often, each end
of the cable has a standard RCA plug-- so; the cable looks much like a normal
audio hi-fi cable. (In fact, a decent hi-fi cable will, often, work fine for
connecting your Apple II to a composite color monitor.)
The main differences between a hi-fi cable and one intended to carry video
signals are 1) the video cable usually has a better, tighter shield; 2) the
video cable is characterized for impedance matching at, usually, 50 or 75 Ohms;
and 3) the video cable exhibits lower capacitance between the center lead and
the shield.
You can connect your Apple II to a Monochrome or Color composite video
monitor.
By: Rubywand
By: Michael Pender and Rubywand
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