Very simple:
AN unbalanced cable is one where one conductor
is grounded. Most coaxial cables are un balanced: the outer
shield is grounded, the center conductor carries the signal.
For balanced lines, neither conductor is at ground potential;
neither line is grounded. A good example of this is the
pairs used on differential SCSI interface (as well as SMD and
possibly others). Relative to ground, both wires carry signal.
Jeff
-----Original Message-----
From: mouse at
rodents-montreal.org
Sent: Sat, 25 Feb 2012 14:57:43 -0500 (EST)
To: cctalk at
classiccmp.org
Subject: Baluns [was Re: Atari CX2600A parts...]
[...]
Which is a Balun in the true sense. A transfomer from the 75 Ohm
unbalanced cable to the 300 ohm balanced TV input.
Okay, now I'm curious. What's unbalanced about the one and balanced
about the other? (Of course, it quite possibly would be perfectly
obvious if I knew more about the relevant interfaces.)
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