In article , Dave Plowman (News)
wrote:


However, most co-ax cable used for phono circuits will be centred around
75 ohms.

My recollection is that the values for 'audio' analog coaxs tend to be for
capacitances in the range from below 100pF/m to around 600 pF/m. This
implies a wide range of impedances - even if we ignore the effects of the
cable resistances, etc, which will change the values in a frequency
dependent manner at audio frequencies.

Fortunately, it doesn't matter much. :-)

Slainte,

Jim

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