Re: Any DIY balun info for S-video to Cat5 conversion?

I read in sci.electronics.design that Richard Crowley <richard.7.crowley@xxxxxxxxx> wrote (in <df7mue$qui$1@xxxxxxxxxxxxxxxx>) about 'Any DIY balun info for S-video to Cat5 conversion?', on Thu, 1 Sep 2005:

Given those specs shouldn't it be relatively easy to find a ferrite core (balun?, toroid?) that would do the job.

Balun transformers have their advantages, but you can try a transformers solution as I explained and if it's OK, THEN tackle the balun question. Yes, video baluns are tricky, because you MUST lose the DC component.
--
Regards, John Woodgate, OOO - Own Opinions Only.
If everything has been designed, a god designed evolution by natural selection.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk
.

Relevant Pages

  • Re: MFJ Tuner "Current Balun" conversion.
    ... transmission line balun of any ratio other than 1:1. ... Trask claims to have a transmission line balun on a single core, ...
    (rec.radio.amateur.antenna)
  • A choke balun is an impedance transformer.
    ... A choke balun can be inserted between a high-Zo balanced transmission ... be wound alongside each other around the core. ... 450 and 600 ohms of the transmission line and the 50 ohms impedance to ... Therefore there is no fixed impedance transformation ratio ...
    (rec.radio.amateur.antenna)
  • A choke balun is an impedance transformer.
    ... A choke balun can be inserted between a high-Zo balanced transmission ... be wound alongside each other around the core. ... 450 and 600 ohms of the transmission line and the 50 ohms impedance to ... Therefore there is no fixed impedance transformation ratio ...
    (uk.radio.amateur)
  • Re: Baluns?
    ... because we have transmission “through two ... These currents are not transmission line ... choking reactance presented by the balun and ... I should think a single core would be superior in relation to the above stated phenomenon. ...
    (rec.radio.amateur.antenna)
  • Re: what a 1:1 choke balum used for
    ... My point is dollar for dollar multiple turns always wind up being a ... I understand how this is a good approach (though this discussion was about the W2DU style choke balun). ... I always try to not bend any cable to a smaller radius than the manufacturer recommends, and I am not familiar with this recommendation for common coax types used by amateurs. ... I would have to look that up before wrapping a core. ...
    (rec.radio.amateur.antenna)