With 7 turns of RG58 on four stacked FT240-31 cores I measure 298uH.
That's broadly consistent with Fair-Rite's published figure for the
Initial Permeability (1500).
Steve G3TXQ
On 30/10/2014 10:22, Jim Thomson wrote:
## I realize the uh, measured at low freqs tells me little about the
CM Z of a choke. I was just interested to know how much uh you folks
are seeing on these bigger CM chokes, where 5-15 turns of coax are used
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