25 Feb
2012
25 Feb
'12
11:13 p.m.
On Sat, 25 Feb 2012, Chuck Guzis wrote:
Date: Sat, 25 Feb 2012 13:48:10 -0800
From: Chuck Guzis <cclist at sydex.com>
Reply-To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at
classiccmp.org>
Subject: Re: Baluns [was Re: Atari CX2600A parts...]
On 25 Feb 2012 at 14:57, Mouse wrote:
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.)
Think differential vs. single-ended. In differential, both lines
carry the same signal, just 180 degrees out of phase, whereas on
conductor in an unbalanced/single-ended line is at a constant fixed
potenetial.
You know this if you fool with various flavors of SCSI or, say, RS422
vs. RS423.
--Chuck
Also coax based Ethernet vs twisted pair
Peter Wallace
[...]
Which is a Balun in the true sense. A
transfomer from the 75 Ohm
unbalanced cable to the 300 ohm balanced TV input.