Re: 'Ferrite Pot Core Pairs'?
I've had a dig around and found some data on the cores.
The FX2240 is ungapped, AL value circa 4000 to 8000 nH/t
The Neosid 26 -16 transformer core is a similar spec.
The reformer article has just the centre-limb gapped to 0.06mm (i.e. 3 thou,) which doesn't sound very hygenic, so i'd be inclined to shim the outer rim as well. It looks like the gapping reduces the AL to about 1000nH/t.
Please find a scan of the relevant data from me little archive!
John
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