Nick Rout wrote:
That one is interesting because it says "S-Video + 2 Audio channels or S-Video + 2 Video channels." Another ad for a similar product with 3 rca plugs says "3 Video/Audio channels - any combination." - which kinda implies to me that video and audio are interchangeable on the baluns. Electricly is this correct? what impedance does one see in a line level audio cable?
Characteristic impedance is only important where the length of wire is significant wrt to the wavelength of the signal. In the case of audio, that is kilometers long, so no, do not use a balun for audio, just use 2 pairs to send your audio signal.
As for the baluns, i suspect you are using the wrong core material. Each material has a specific permittivity over certain frequency range.
Choose the wrong one and you may as well be winding it on a peice of cardboard. South Island components have a decent range of torroidal cores.
Cheers, Rex
