From: legg@nospam.magma.ca   
      
   On Sun, 25 Jan 2026 08:08:48 -0800, john larkin    
   wrote:   
      
   >On Sun, 25 Jan 2026 08:51:24 -0500, legg  wrote:   
   >   
   >>On Sat, 24 Jan 2026 19:25:35 +0000, liz@poppyrecords.invalid.invalid   
   >>(Liz Tuddenham) wrote:   
   >>   
      
   >>In applications where power levels are important, pot core orientation   
   >>will affect 'N' in the flux density concentration, and produce early   
   >>saturation at the location where minimum x-sectional area occurs.   
   >>   
   >>RL   
   >   
   >That should have a small effect on my pulser. Ill try it.   
   >   
   >I got a 2% change in inductance when I rotated the core halves.   
   >   
   >   
   >John Larkin   
   >Highland Tech Glen Canyon Design Center   
   >Lunatic Fringe Electronics   
      
   2% FREE x-sectional area, and an indication that the previous   
   misalignment doesn't dominate minimum value.   
      
   Mind you, you can get a similar change just by forcing out   
   the fluff and detritus present at the contacting surfaces.   
   That might be what you're actually seeing, even if the core   
   is gapped.   
      
   In pot cores, minimum x-section usually occurs where the centre   
   core meets the top and bottom plates. In parts shapes designed   
   for power applications, this is usually corrected.   
      
   This core rotation can be used as a tolerance trim, where   
   needed, but anything like that before impregnation is probably   
   just biting fart bubbles.   
      
   RL   
      
   --- SoupGate-Win32 v1.05   
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